Thông tư 03/2016/TT-BXD

CIRCULAR

REGULATIONS ON CLASSIFICATION OF CONSTRUCTION WORKS AND INSTRUCTIONS ON APPLICATION TO CONSTRUCTION MANAGEMENT

Pursuant to the Law on Construction No. 50/2014/QH13 dated June 18, 2014;

Pursuant to the Government’s Decree No. 46/2015/ND-CP dated May 12, 2015 on quality control and maintenance of construction works (hereinafter referred to as “The Decree No. 46/2015/ND-CP);

Pursuant to the Government’s Decree No. 59/2015/ND-CP dated June 18, 2015 on construction project management (hereinafter referred to as “The Decree No. 59/2015/ND-CP);

Pursuant to the Government’s Decree No. 62/2013/ND-CP dated June 25, 2013 providing for functions, tasks, powers and organizational structure of the Ministry of Construction;

At the request of general director of Construction Quality Inspectorate;

The Minister of Construction has promulgated the Circular providing for classification of construction works and instructions on the application to construction management activities

Article 1. Scope and regulated entities

1. Governing scope:

This Circular details the classification of construction works and  instructions on application to construction management activities as prescribed in Clause 3, Article 8 of the Decree No. 46/2015/ND-CP.

2. Regulated entities:

This Circular applies to investment deciders, investors, owners, managers and users of the works, contractors at home and abroad, state administration agencies for construction, other organizations and individuals engaged in construction investment activities within the territory of Vietnam.

Article 2. Principles of classification

1. Classes of construction works (herein ‘construction classes’) as prescribed hereof shall be determined in following criteria:

a) Capacity, level of importance: applied to individual works or technology lines, complexes of works as prescribed in Clause 3, this Article, determined according to Annex 1 enclosed herewith; Any works not being listed in Annex 1 enclosed herewith shall be classified on the basis of structure scale as prescribed in Point b, this Clause.

b) Structure: applied to individual works belonging to construction investment projects, determined according to Annex 2 enclosed herewith.

2. Class of an independent work is the highest one determined on the basis of criteria stated in Clause 1, this Article.

3. Construction investment projects may include one, several independent major works or major technology lines, complexes of interconnected works forming overall scale and function of the project.

4. Classes of national defense and security works are determined according to this Circular. For national defense and security works of specific characteristics, the classification shall be decided by the Ministry of National Defense, the Ministry of Public Security.

Article 3. Application of construction classes to constructions activities

1. Application of construction classes aimed at determining authority of construction authorities in verifying construction designs, inspecting acceptance testing during the construction and completion of a construction work is instructed as follows:

a) In case a construction work includes only one independent major work, apply construction classes determined according to Clause 2, Article hereof;

b) In case an investment project includes several major works independent from one another, apply construction class of the work of highest class as prescribed in Clause 2, Article 2 hereof;

a) In case a construction work includes major technology lines, major complexes of construction works, apply construction classes as prescribed in Point a, Clause 1, Article 2 hereof;

d) Other cases

2. Apart from determination of authority of construction authorities as prescribed in Clause 1, this Article, construction classes shall serve as foundations for managing following activities as prescribed in Clause 3, this Article:

a) Classify construction qualifications of organizations and individuals to issue certificates of qualification, practice certificates and publish information about construction qualifications;

b) Classify authorities to issue construction licenses;

c) Determine the works that require selection of architectural designs as prescribed in Points a, d, Clause 1, Article 15 of the Decree No. 59/2015/ND-CP;

d) Determine the works that require formulation of technical instructions;

dd) Determine the works having influence on community safety;

e) Determine the works that require professional liability insurance;

g) Determine the works that require safety assessment during the operation and use;

h) Classify incidents to the works and authority to handle the incidents;

i) Manage construction investment costs;

k) Determine duration and costs of maintenance of the works;

l) Determine the works that require a maintenance process;

3. Principles of applying construction classes to construction activities as prescribed in Clause 2, this Article:

a) In case construction is carried out for the entire construction work, apply classification as prescribed in Clause 2, Article 2 hereof;

a) In case construction is carried out for the entire technology line, complex of main construction works, apply classification as prescribed in Point a, Clause 1, Article 2 hereof;

d) Other cases as prescribed in relevant documents;

Article 4. Transitional provisions

1. Any work belonging to the investment projects approved before the effective date of this Circular shall be classified in accordance with the regulations at the time of approval.

2. Any work as stated in Clause 1, this Article with the construction design being adjusted after the effective date of this Circular:

a) Shall be classified in accordance with Clause 1, this Article (In case the adjustments made to the construction design do not change capacity and structure as prescribed hereof);

a) Shall be classified in accordance with provisions of this Circular (In case the adjustments made to the construction design do change capacity and structure as prescribed hereof);

Article 5. Effect

1. This Circular takes effect since May 15, 2016 and supersedes provisions of Article 7, Annex 1 enclosed with the Ministry of Construction’s Circular No. 10/2013/TT-BXD dated July 25, 2013 detailing a number of articles concerning construction quality management and Clauses 4, 6, Article 1 of the Circular No. 09/2014/TT-BXD dated July 10, 2014 amending and supplementing a number of articles of the Circular providing instructions on the Decree No. 15/2013/ND-CP on construction quality management.

2. Difficulties that arise during the implementation of this Circular should be reported to the Ministry of Construction for consideration and handling./.

ANNEX 1

CLASSIFICATION OF CONSTRUCTION WORKS ACCORDING TO CAPACITY AND LEVEL OF IMPORTANCE

(Enclosed with the Ministry of Construction’s Circular No. 03/2016/TT-BXD)

Table 1.1 Classification of civil works

Notes:

- Any work not listed in the Table 1.1 shall be classified according to the Table 1.1 if its type is found in conformity with types of works as stated therein.

- Any work not listed in the Table 1.1 and its type not in conformity with types of works as stated therein shall be classified according to type and structure (Annex 2);

- Religious works (head offices of religious organizations, pagodas, churches, chapels, cathedrals, oratories, Buddhist temples, religious education schools, religious statues…): construction classes are determined according to type and structure (Annex 2) but not below class III;

- Refer to examples of determination of classes of civil works in Annex 3;

Table 1.2. Classification of industrial works

Notes:

- Any industrial work with types in conformity with the types of works as stated in the Table 1.2 shall be classified according to the table, even though it is not listed in the table above; Any industrial work with its type is found not in conformity with the table shall be classified on the basis of type and structure (Annex 2);

- Refer to examples of determination of classes of industrial works in Annex 3;

Table 1.3. Classification of infrastructural works

Notes:

-: (*) Intended for automobiles with a maximum of 9 seats or trucks below 3,500kg.  In case of a mixed parking house (including motorbikes), one space for an automobile shall be converted into six spaces for motorbikes;

- Any technical infrastructural work with types in conformity with the types of works as stated in the Table 1.3 shall be classified according to the table, even though it is not listed in the table above.

- Any work not listed in the Table 1.3 and its type not in conformity with the types of works as stated therein shall be classified according to type and structure (Annex 2);

Refer to examples of determination of classes of infrastructural works in Annex 3;

Table 1.4. Classification of traffic works

Notes:

- Any traffic work with types in conformity with the types of works as stated in the Table 1.4 shall be classified according to the table, even though it is not listed in the table above.

- Any traffic work not listed in the Table 1.4 and its type not in conformity with the types of works as stated therein shall be classified according to type and structure (Annex 2);

- Refer to examples of determination of classes of traffic works in Annex 3;

Table 1.5. Classification of agriculture and rural development works

Notes:

- Any agricultural work with types in conformity with the types of works as stated in the Table 1.5 shall be classified according to the table, even though it is not listed in the table above;

- Any agricultural work not listed in the Table 1.5 and its type not in conformity with the types of works as stated therein shall be classified according to type and structure (Annex 2);

- For livestock and crop production, forestry, salt production, fishery, rural development construction and other agricultural works that normally include other works such as civil, industrial, traffic, irrigation and technical infrastructural works... due to its specific characteristics, the classification shall be based on specific cases to ensure accordance with classification principles as prescribed hereof;

- Refer to examples of determination of classes of agricultural works in Annex 3;

ANNEX 2

CLASSIFICATION OF CONSTRUCTION WORKS ACCORDING TO STRUCTURE

(Enclosed with the Ministry of Construction’s Circular No. 03/2016/TT-BXD)

Table 2. Classification of construction works according to structure

Notes:

1. Determination of construction classes based on structures is instructed as follows:

a) Based on characteristics of the works, determine types of structures according to sections in Table 2;

b) Determine construction classes according to classification criteria for types of structures determined in Point a. Take determined highest class as the class of the works.

2. A number of glossaries used in Table 2’s classification criteria is construed as follows:

a) House, house-shaped structures mean cube-shaped works constructed on the ground, with or without load bearing, covering structures, and roof.

b) Determine height of structures:

- For construction works/structures in Section 2.1, height is calculated from ground elevation of the work/structure to its highest point (including attic floors or slope roof). For construction works/structures constructed on the ground with difference  For construction works/structures with different ground elevations, height shall be calculated from the lowest ground elevation. If top of the structure accommodates technical equipment such as antenna columns, lightning-arresting columns, solar energy equipment, metal water tanks…, height of such equipment shall not included in the structure height;

- For structures in Section 2.2: Structure height shall be calculated from ground elevations to its highest point of the structure. For construction works/structures with different ground elevations, height shall be calculated from the lowest ground elevations.

Structure height in some separate cases is instructed as follows:

+ For pier, tower, support column structures in Section 2.2.1, structure height is calculated as total height of equipment support pier, tower and equipment placed thereon;

+ For structures installed on existing constructions in Section 2.2.2, structure height is calculated from footing to top of the installed structure.

- For structures in Section 2.3, height of a support column is the distance from the upper face of column foundation to its top; height over ground, water level is the distance from the cable to ground or water level (average annual water level).

- For structures in Section 2.4: height of storage structures is determined the same as Section 2.1.

- For structures in Section 2.5, height of piers is the distance from the upper face of pier foundation to its top;

- For barrier wall structures in Section 2.7, height of barrier walls is calculated from lower ground level to its top;

- For dam structures in Section 2.8.2, height is calculated from bottom of the lowest cut-off walls to the crest;

- For dam structures in Section 2.8.2, height is calculated from the lowest foundation surface to the crest.

d) Number of floors of a building/construction work: Include all floors on the ground including technical floors, mezzanine floors, attic floors or semi-underground floors.

d) Number of underground floors of a building/construction work include all the floors underground excluding semi-underground floors.

c) Underground depth is the depth calculated from ground elevation down to upper face of the deepest basement floor..

g) Largest structural span of a building/construction work is the maximum distance between two adjacent piers (columns, walls) used to support horizontal structures. Particularly for console structures, span distance is equal to 50% of the value as prescribed in Table 2.

h) Total floor area of a building/construction work is the total area of all the floors including basement floors, semi-underground floors, technical floors and attic floors. Floor area of a floor is the construction area of such floor including outer walls (or shared portion of the walls belonging to the structure) and area of logia, balcony, staircases, lift wells, technical boxes and chimneys./.

3. For open water drainage channels (infrastructural works), the classification is based on reinforced structures of channel embankments or roof (choose types that are appropriate for Section 2.9)

4. Refer to examples of determination of construction classes according to structures in Annex 3;

ANNEX 3

EXAMPLES OF CLASSIFICATION OF CONSTRUCTIONS

(Enclosed with the Ministry of Construction’s Circular No. 03/2016/TT-BXD dated March 10, 2016)

3.1. Example 1: Civil works – Upper Secondary School A

The project on investment and construction of the Upper Secondary School A for 1,500 students. The project includes following works:

- Building A1 (School headquarters): 8 floors, total floor area: 4,000 m²;

- Building A2 (Classrooms): 6 floors, total floor area: 4,650 m²;

- Building A3 (Classrooms): 4 floors, total floor area: 4,000 m²;

- Building A4 (Classrooms): 5 floors, total floor area: 5,000 m²;

- Building A5 (indoor multi-functional sports facilities with a grandstand) Besides, this building shall be used as a place for school meetings, conferences (one floor (12m), 300-seat grandstand, total floor area 5,200m², largest structural span 40m, total accommodation for an event 1,250 persons);

- Building A6 (dorm): 5 floors, total floor area: 3,000 m²;

- Garden yard: 2 ha;

- Internal road system for pedestrians, bicycles, motorbikes, automobiles at speed < 20 km/h;

- Lighting system for garden yard and internal roads;

- Fence: 3 meters high;

- Security house: one floor, floor area 12 m²;

The classification is instructed as follows:

a) The Upper Secondary School A has a complex of major constructions (including buildings from A1 – A5). According to Point a, Clause 1, Article 2 hereof, and Section 1.1.1.3, Table 1.1, Annex 1, the Upper Secondary School A is classified as class II (according to capacity).

b) Classification of individual works belonging to the Upper Secondary School A:

- Building A1: not listed in the Table 1.1, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.1.1 and is classified as class III (area-based), class I (number of floors-based). Class of the Building A1: class II (highest class determined).

- Building A2: Classification is the same as Building A1. Class of the Building A2: class III.

- Building A3: Classification is the same as Building A1. Class of the Building A3: class III.

- Building A4: Classification is the same as Building A1. Class of the Building A4: class III.

- Building A4: this work has separate capacity and is classified according to Clause 2, Article 2 hereof as follows:

+ Capacity-based classification corresponding to Section 1.1.3.2, Table 1.1, Annex 1 (Sports works) (Class III), to Section 1.1.4.1, Table 1.1, Annex 1 (works attracting crowds) (Class II). Capacity-based highest class of the work: Class II;

+ Structure-based classification corresponds to Section 2.1.1, Table 2, Annex 2; area-based classification: class III, structural span-based classification: class III. Structure- based highest class of the work: Class II;

Hence, the Building A5 is classified as class II (highest class determined on the basis of capacity and structure)

- Garden yard corresponds to Section 1.3.5, Table 1.3, Annex 1 and classified as class IV according to area.

- Lighting for Garden Yard and internal roads corresponds to Section 1.3.4, Table 1.3, Annex 1 and classified as class IV (based on class of lighted works, garden yard and internal roads classified as class IV above);

- Internal roads corresponds to Section 1.4.1.3 and 1.4.1.3, Table 1.3, Annex 1 and classified as class IV.

- Protection fence: not listed in the Table 1.1, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.14.1; height-based classification: class IV.

- Security House: Classification is the same as Building A1. Class of the Security House: class IV.

3.2. Example 2: Civil works – General Hospital Q

The project on investment and construction of the General Hospital Q for 450 beds. The project includes following works:

- Building Q1 (Working offices, training and research centers): 9 floors, total floor area 8,000 m²;

- Building Q2 (Medical examination and diagnosis centers): 3 floors, total floor area 2,500 m²;

- Building Q3 (Emergency and surgery): 2 floors, total floor area: 2,000 m2;

- Building Q4 (Specialties, post-surgery treatment): 22 floors, total floor area: 22,000 m²;

- Building Q5 (Food preparation): 2 floors, total floor area 1,000 m²:

- Building A6 (Canteen): 2 floors, total floor area: 600 m²:

- Building A7 (Mortuary): 1 floor, total floor area: 500 m²;

- Building A8 (funeral parlor): 1 floor, total floor area: 600 m²;

- Q9 (Wastewater treatment plant): 1,500 m³/day and night;

- Q10 (Solid waste treatment plant): capacity 5 tonnes/day;

- Garden yard;

- Outdoor parking lot: 5,000 m²;

- Internal road system for bicycles, motorbikes, automobiles at speed < 20 km/h;

- Fence: 4.5 m high;

- Security House (4 houses): each house is one floor high with a area of 12 m²;

- Electrodynamic system: lines and transformers, voltage < 35 kV;

- Lighting system for garden yard and internal roads;

- Water supply system (Reservoir and pumps): capacity 1,500 m³/day and night;

- Wastewater drainage sewer: inner diameter and length of the pipe is 450 mm and 900m respectively.

The classification is instructed as follows:

a) The General Hospital Q has a complex of major works (including Building Q1, Q2, Q3...). According to Point a, Clause 1, Article 2 hereof and Section 1.1.2.1, the hospital is classified as class II according to capacity.

b) Classification of works belonging to the General Hospital Q

- Building Q1: not listed in the Table 1.1, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.1.1 and classified as class II.

- Building Q2: Classification is the same as Building Q1. Class of the Building Q2: class III.

- Building Q3: Classification is the same as Building Q1. Class of the Building Q3: class III.

- Building Q4: Classification is the same as Building Q1. Class of the Building Q4: class I.

- Building Q5: Classification is the same as Building Q1. Class of the Building Q5: class III.

- Building Q6: Classification is the same as Building Q1. Class of the Building Q6: class III.

- Building Q7: Classification is the same as Building Q1. Class of the Building Q7: class IV.

- Building Q8 (funeral parlor) is the work listed in Table 1.3, Annex 1 and classified according to level of importance. In this case, the classification according to Clause 2, Article 2 hereof is as follows:

+ Importance-based classification corresponds to Section 1.3.7, Table 1.3, Annex 1 (class II)

+ Structure-based classification corresponds to Section 2.1.1, Table 2, Annex 2 (class IV);

Hence, the Building A8 is classified as class II (highest class determined on the basis of importance and structure);

- Wastewater treatment plant corresponds to Section 1.3.2.3, Table 1.3, Annex 1 and is classified as class III.

- Solid waste treatment plant corresponds to Section 1.3.3.1.b, Table 1.3, Annex 1 and is classified as class III.

- Outdoor parking lot corresponds to Section 1.3.9.3, Table 1.3, Annex 1 and is classified as class IV.

- Water supply system (reservoir and pumps) corresponds to Section 1.3.1.2, Table 1.3, Annex 1 and is classified as class III.

- Wastewater drainage sewers: not listed in the Table 1.3, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.10.8 and is classified as class III (according to pipe diameter) but reduced one level to class IV due to total length of pipe being less than 1,000 m.

- Electrodynamic system corresponds to Section 1.2.5.11, Table 1.2, Annex 1, and is classified as class IV.

- Classification of garden yard, lighting system, internal roads, fence, security house, refer to Example 1.

3.3. Example 3: Civil works – Apartment House X

The project on investment and construction of the Apartment House X on a land parcel A belonging to an urban area with completed technical infrastructural system. The apartment house includes following works:

- Building XI (Apartment house): 15 floors, 60 m high, total floor area 12,000 m²;

- Building X2 (Apartment house): 18 floors, 72 m high, total floor area 15,000 m²;;

- Building X3 (Apartment house): 25 floors, 100 m high, total floor area 22,000 m²;;

- Garden yard in the middle of the buildings: 1,000 m²;

- Lighting for garden yard.

The classification is instructed as follows:

a) The apartment house X has several independent major works (Building X1, X2 and X3). In this case, to determine authority of construction authorities as prescribed in Clause 1, Article 3 hereof, highest class of the work (class I) (class of Building X3) shall be used.

b) Classification of works belonging to the apartment house X:

- Building X1: not listed in the Table 1.1, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.1.1 and IS classified as class II.

- Building X2: the classification is the same as Building XI (Class II).

- Building X3: the classification is the same as Building XI (Class I).  

- Classification of garden yard, lighting system, internal roads, refer to Example 1.

3.5. Example 5 – Industrial works – hydropower plant B

The project on investment and construction of the hydropower plant, capacity of 100 MW. The project includes following works:

- Dam: 50 m high, concrete structure placed on stone foundation;

- Reservoir: 10 million m³ corresponding to normal rising water level;

- Plant: capacity 100 MW;

- Transmission lines and transformers: voltage 110 kV;

- Control House: floor area 2,000 m², 4 floors without underground floors;

- Tenement house;

- Internal roads for automobiles at speed < 30 km/h;

Other works such as intake gate, pressure tunnel, spillway…

The classification is instructed as follows:

a) The project has a major technology line. According to Point a, Clause 1, Article 2 hereof and Section 1.2.5.3, Table 1.2, Annex 1, the plant is classified as class I according to capacity.

b) Classification of the works belonging to the plant.

- Reservoir corresponds to Section 1.5.1.2, Table 1.5, Annex 1 and is classified as class III.

- Dam: not listed in the Table 1.5, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.8.2.a and is classified as class II.

- Classification of industrial works within the plant shall be based on Clause 2, Article 2 hereof if such works are listed in (or with types found appropriate to) Table 1.2, Annex 1. Otherwise, the works shall be classified according to structure (refer to Table 2, Annex 2 hereof).

- Such works as intake gate, pressure tunnel, spillway…: not listed in the classification tables in Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification is based on structures;

- Transformers and transmission lines correspond to Section 1.2.5.11, Table 1.2, Annex 1 and classified as class II.

- Classification of civil works such as Control house, tenement house and other works, see Example 1 and Example 2.

- Classification of internal roads, see Example 1.

3.6. Example 6: Industrial works – Mechanical engineering plant C

The project on investment and construction the mechanical engineering plant with the aim of manufacturing small mechanical products as ordered by other enterprises. Products from this plant normally vary and depend on customers’ orders, hence, it is impossible to determine type and quantity of products at the time of feasibility study. The project includes following works:

- Warehouse: One floor, largest structural span 24m, total floor area 6,000 m², total height from outdoor ground level to its top 12 m;

- Main production house (equipment and production lines: lathes, presses, welders...): industrial house-shaped, one floor, 3 spans, largest span 60 m, total floor area 10,000 m², height 18 m (from outdoor ground level to the top)

- Office building (offices, canteen, rest areas for workers…)

- Yards (concrete yards used for placement of materials, machinery): 1 ha;

Other works such as security house, fence and transformers…

The classification is instructed as follows:

a) The project has one major work (main production house). In this case, to determine authority of construction authorities as prescribed in Clause 1, Article 3 hereof, class of the major work (class II) shall be used.

b) Classification of works belonging to the mechanical engineering plant C:

- Warehouse: not listed in the classification tables, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.1.1 and is classified as class III (height-based), class IV (based on number of floors), class III (area-based) and class III (structural span-based). Warehouse is classified as class III (highest class determined)

- Main production house: not listed in the Table 1.2, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.1.1 and is classified as class III (height-based), class IV (based on number of floors), class II (area-based) and class II (structural span-based). The main production house is classified as class II (highest class determined).

- Classification of office building, yards, security house, fence, transformers, see examples from 1 – 4.

3.7. Example 7: Technical infrastructural works – Television tower HN

The project on construction of the 600 m- high TV tower. The project includes following works:

- Main tower: 600 m high;

- P1 (Outdoor parking lot): 1 ha;

- P2 (Green tree garden): 5 ha;

- P3 (Lighting system): for green tree garden, walkways.

The classification is instructed as follows:

a) The project has one major work: Main tower. In this case, to determine authority of construction authorities as prescribed in Clause 1, Article 3 hereof, class of the major work (special class) shall be used.

b) Classification of the works belonging to the TV tower HN:

- Main tower: not listed in the Table 1.3, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.2.2 and is classified as special class (height-based).

- P1 is classified as class IV (see Example 1)

- P2 is classified as class III (see Example 1)

- P3 is classified as class III (see Example 1)

3.8. Example 8: Technical infrastructural works – Water Plant A

The project “Water Plant A” has a capacity of 50,000 m³/day and night. The project includes following works:

- A1 (Pipeline of raw water from its source): Inner diameter 1,000 mm and length 5 km;

- A2 (Water containing and treating reservoir): volume 12,000 m, placed half-underground (underground depth 5 m, height 3 m from ground level);

- A3 (Provisional clean water reservoir): volume 3,000 m, placed half-underground (underground depth 5 m, height 3 m from ground level);

- A4 (Clean water pump station): capacity 70,000 m³/day and night placed in a one-floor, 8-meter height house, total floor area 1,000 m²;

- A5 (Main water pipeline): inner diameter 800 mm, length 10 km;

- A6 (branch water pipeline): inner diameter 600 mm, length 15 km;

- A7 (Water distribution pipeline): diameter 125 mm;

Other works;

The classification is instructed as follows:

a) The project has one main technology line. According to Point a, Clause 1, Article 2 hereof and Section 1.3.1.1, Table 1.3, Annex 1, the plant is classified as class I according to capacity.

b) Classification of the works belonging to the water plant A:

- A1: not listed in the Table 1.3, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.10.1 and is classified as class I.

- A2: not listed in the Table 1.3, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.4 and is classified as class I (volume-based), class III (underground depth-based) and class IV (height-based). A2 is classified as class II (maximum class determined);

- A3: Classification is the same as A2 (class III).

- A4: this work has separate capacity and is classified according to Clause 2, Article 2 hereof as follows:

+ Capacity-based classification corresponding to Section 1.3.1.2, Table 1.3, Annex 1 (class IV);

+ Structure-based classification corresponding to Section 2.1.1, Table 2, Annex 2; class IV (based on the number of floors), class III (height-based) and class III (based on total floor area). Highest class (structured-based): Class II;

Hence, A4 is classified as class I (highest class determined on the basis of capacity and structure);

- A5: Classification is the same as A1 (class I).

- A6: Classification is the same as A1 (class II).

- A7: Classification is the same as A1 (class IV).

3.9. Example 9. Technical infrastructural works – Auto parking house/lot

a) Parking house A (Underground):

The work includes three underground floors at a depth of 18 m (from ground level down to floor of third basement), total floor area 5,000 m², number of parking spaces: 400 automobiles. The classification is instructed as follows:

- + Capacity-based classification corresponding to Section 1.3.9.1, Table 1.3, Annex 1; classification according to the number of parking spaces (class II);

- + Structure-based classification corresponding to Section 2.1.1, Table 2, Annex 2; class II (based on number of underground floors), class II (underground depth-based) and class III (based on total floor area). Highest class (structure-based): Class II;

According to Clause 2, Article 2 hereof, the parking house A is classified as class II (highest class determined on the basis of capacity and structure).

b)Parking house B (half-underground)

Half-underground parking house (2 basement floors and 3 floors on the ground) with total floor area 12,000 m² (underground area: 4,500 m², on-the-ground area: 7,500 m²), number of parking spaces 400 (150 spaces underground and 250 on the ground). The specification is instructed as follows::

- Capacity-based classification corresponding to Sections 1.3.9.1 and 1.3.9.2, Table 1.3, Annex 1; classification based on the number of underground parking spaces (class III), based on on-the-ground parking spaces (class III) and based on capacity (class III);

- Structure-based classification corresponding to Section 2.1.1, Table 2, Annex 2 (class II);

According to Clause 2, Article 2 hereof, the parking house B is classified as class II (highest class determined on the basis of capacity and structure).

c) Parking lot C

The parking lot C: ferro-concrete ground of 10,000 m² and not covered. Classification corresponding to Section 1.3.9.3, Table 1.3, Annex 1; area-based classification: class IV.

3.10. Example 10. Traffic works – High-speed auto route A

The project “High-speed auto route A”, 200 km long, design speed 120 km/h. This project includes following works:

- A1 (High-speed auto road): design speed 120 km/h;

- A2 (Road bridge): 4 spans, largest span 40 m, pier height 20 m;

- A3 (Road tunnel): tunnel running through mountains with ferro-concrete shell, 300 m long, cross-section area of the tunnel 200 m²;

- A4 (Toll-booth): frame structures, roof, height from ground to top 15 m, largest span 40 m;;

And other small structures such as sign posts, sign frames, welfare tunnels, road railings.

The classification is instructed as follows:

a) The project has several major works (A1, A2 and A3). In this case, to determine authority of construction authorities as prescribed in Clause 1, Article 3 hereof, highest class of the work (special class) shall be used.

b) Classification of the works belonging to "High-speed auto route A".

- A1 corresponds to Section 1.4.1.1, Table 1.4, Annex 1 and is classified as special class according to design speed.

- A2: not listed in the Table 1.4, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.5.1 and is classified as class II.

- A3: not listed in the Table 1.4, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.6, Table 2, Annex 2 and is classified as class I.

- A4: not listed in the Table 1.4, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.1.3, Table 2, Annex 2 and is classified as class III.

- Other small structures (sign posts, sign frames, welfare tunnels, road railings…) shall be classified on the basis of structure (use Table 2, Annex) if such structures are not listed in (or their types are not appropriate to) the Table 1.4.

3.11. Example 11: Traffic works – Lighthouse M

“Lighthouse M” is constructed on an island, 50 meters high over outdoor ground level. Effective range (8 nautical miles) The specification is instructed as follows:

- Capacity-based classification corresponding to Section 1.4.6.4.b, Table 1.4, Annex 1: class I;

- Structure-based classification corresponding to Section 2.2.1, Table 2, Annex 2; height-based classification:class II;

According to Clause 2, Article 2 hereof, the lighthouse M is classified as class I (highest class determined on the basis of capacity and structure).

3.12. Example 12 – Agricultural works – Farm A.

“Farm A” with an area of 30 ha includes following works:

- A1: Water supply system for watering an area of 25 ha;

- A2: Drainage system for an area of 29.5 ha;

- A3 (cultivar greenhouse): One floor, 12 m high, largest span 30 m, total area 4,000 m²;;

Other works: Working places, residence for workers, internal roads, transformers and transmission lines, tap water supply system (reservoir and pipelines); domestic wastewater drainage system; warehouses, yards, fence.

The classification is instructed as follows:

a) The project has several major works (A1, A2 and A3). In this case, to determine authority of construction authorities as prescribed in Clause 1, Article 3 hereof, highest class of the work (class III) shall be used.

b) Classification of the works belonging to Farm ;

- A1 corresponds to Section 1.5.1.1, Table 1.5, Annex 1 and classified as class IV (according to irrigation area).

- A2 corresponds to Section 1.5.1.1, Table 1.5, Annex 1 and classified as class IV (according to drainage area).

- A3: not listed in the Table 1.5, Annex 1, hence, according to Point a, Clause 1, Article 2 hereof, the classification shall be based on structure. According to Table 2, Annex 2, this work corresponds to Section 2.1.1 and is classified as class III.

- For classification of other works, see the examples in this Annex./.