A Full List Of CIDB Specialisation Categories For Contractors

While CIDB grades determine the upper value of a project contractors can undertake, CIDB categories and specialisations limit the types of projects they qualify for.

In total, CIDB has 132 codes representing a different construction specialty under five main categories, and while contractors are free to add new categories and codes, it should be based on:

• their ability to meet eligibility criteria, and
• the type of construction projects they want

To help, we’ve presented the full list of codes from CIDB’s below in a user-friendly format – check the table of contents and jump to desired codes and back at the click of a mouse!

And for the ones short on time, skip the browsing and get in touch!

Otherwise, let’s begin.

How our CIDB specialisation list works

All CIDB specialisation codes belong to one of five main categories:

• Building Construction (B) has 29
• Civil Engineering (CE) has 43
• Mechanical (ME) has 23
• Electrical (E) has 35
• Facilities (F) has just 2

Below, each category has its own section and each code under it has a description and list of requirements.

Unless you really like scrolling, we recommend using our Table of Contents as an anchor point to quickly skip to categories and codes relevant to your specialisation.

Building Construction (B)

Name	Description	Code	Requirements
IBS: Precast Concrete System	Construction using precast components such as columns, beams, slabs, and walls	B01	Letter of Award (LOA) or SKP Module KK-T-011 / KK-T-011(A)
IBS: Steel Frame System	Construction using hot-rolled or cold-rolled steel structures and roof trusses	B02	LOA or SKP Module KK-T-008
Restoration and Conservation	Work related to the restoration and conservation of buildings	B03	Letter of Award (LOA)
Building Construction Work	General building construction projects	B04	Technical Personnel (standard for new contractors)
Piling Work	Installation of building piles	B05	LOA or SKP Module KK-T-028
Concrete Structure Repair	Specialized repair work for concrete structures	B06	LOA or SKP Module KK-T-027
Interior Decoration	Indoor decoration, including ceiling and partition installation	B07	LOA or SKP Module KK-T-006 / KK-T-007 / KK-T-041
Waterproofing Installation	Installation of waterproofing for basements, roofs, and walls	B08	LOA or SKP Module KK-T-010
Indoor Landscaping	Hard and soft landscaping located inside a building	B09	LOA or SKP Module KK-T-013
Internal Water Plumbing	Installation and maintenance of internal water pipe systems	B10	Permit A (SPAN) or Sabah/Sarawak specialized license
Signage Installation	Mounting of directories and signs on buildings	B11	LOA or SKP Module KK-T-040
Glass Installation	Work involving glass panels and frames	B12	LOA or SKP Module KK-T-029
Tiling Installation	Installation of tiles on building surfaces	B13	LOA or SKP Module KK-T-002
Painting Work	General building painting projects	B14	LOA or SKP Module KK-T-038
Roof Installation	Installing roofs and thermal insulation	B15	LOA or SKP Module KK-T-030 / KK-T-039
Swimming Pools	Construction and finishing of swimming pools	B16	Letter of Award (LOA)
Prestressing Work	Prestressing and post-tensioning engineering work	B17	Letter of Award (LOA)
Metal Works	Installation of ironwork, grilles, and awnings	B18	LOA or SKP Module KK-T-009
IBS: Formwork System	Construction using mechanical or fixed formwork systems	B19	LOA or SKP Module KK-T-046
Indoor Gas Piping	Installation of internal gas piping systems	B20	ST Registration (Class A/B/C) or LOA (Sabah/Sarawak)
Scaffolding	Erecting and dismantling of scaffolding structures	B21	JKKP Scaffolding Operator Certificate (Individual)
IBS: Block System	Construction using interlocking masonry or concrete blocks	B22	LOA or SKP Module KK-T-045
IBS: Timber Frame System	Construction using prefabricated timber roof trusses and frames	B23	LOA or SKP course
Building Maintenance	General maintenance of building complexes and surroundings	B24	LOA or SKP Module KK-T-037
Sewerage Connections	Connecting private pipes to a public sewerage system	B25	Permit B (SPAN) or LOA (Sabah/Sarawak)
Demolition Work	Demolishing any existing buildings or industrial plants	B26	LOA or SKP Module KK-T-047
Water/Sewerage Repair	Maintenance/repair of existing water and sewerage systems	B27	Permit D (SPAN) or LOA (Sabah/Sarawak)
Renovation Work	Additions, alterations, or structural amendments to buildings	B28	LOA or SKP Module KK-T-036
Health Building Work	Construction specialized for medical facility projects	B29	LOA or SKP Module KK-T-033

Civil Engineering (CE)

Name	Description	Code	Requirements
Road and Pavement Construction	Construction, maintenance, and repair of roads and pavements including road shoulders and pedestrian paths	CE01	Letter of Award (LOA) or SKP Module KK-T-014 / KK-T-022
Bridge and Jetty Construction	Construction, maintenance, and repair of bridges, viaducts, overpasses, and similar structures	CE02	LOA or SKP Module KK-T-015
Marine Structures	Construction of ports and bases including wharfs, jetties, breakwaters, fenders, and container terminals	CE03	LOA or SKP Module KK-T-016
Dams	Construction of dams	CE04	Letter of Award (LOA)
Tunnels and Underground Support	Construction of tunnels and underground support (underpinning)	CE05	Letter of Award (LOA)
Drainage and Flood Control	Construction and maintenance of drainage structures, canals, culverts, and flood control systems	CE06	LOA or SKP Module KK-T-012 / KK-T-042
Railway Tracks	Construction, repair, and maintenance of railway tracks and support structures	CE07	Letter of Award (LOA)
Slope Protection and Stabilization	Slope protection and repair works including micropiling, ground anchoring, and retaining walls	CE08	LOA or SKP Module KK-T-019
Oil or Gas Main Pipelines	Installation, maintenance, and repair of main pipelines for oil or gas	CE09	Registration with JKKP or Energy Commission (ST) Class A/B/C
Piling Work	Piling works including in-situ concrete, precast reinforced concrete, prestressed concrete, or steel piles	CE10	LOA or SKP Module KK-T-028
Concrete Structure Repair	Repair of concrete structures using pressure grouting, guniting, and similar methods	CE11	Letter of Award (LOA)
Soil Investigation	Soil investigation and testing to determine classification, strength, and content	CE12	LOA or SKP Module KK-T-020
Billboard Installation	Installation of any billboards including their support structures	CE13	LOA or SKP Module KK-T-040
Outdoor Landscaping	Soft and hard landscaping works outside buildings, including fountains and parks	CE14	LOA or SKP Module KK-T-013
Oil and Gas Platforms	Construction and maintenance of oil and gas platforms and related works	CE15	Letter of Award (LOA)
Underwater Structure Maintenance	Maintenance and repair of underwater structures like platform legs or jetty pillars	CE16	Letter of Award (LOA)
Airports	Construction of airports including terminals, cargo facilities, control towers, and runways	CE17	Letter of Award (LOA)
Land Reclamation	Reclamation of land from sea, river, or swamp for construction use	CE18	Letter of Award (LOA)
Sewerage Systems	Construction, installation, or modification of sewerage systems	CE19	Permit C from SPAN (C1–C4) or LOA (Sabah/Sarawak)
Water Supply Systems	Construction, installation, or modification of water supply systems	CE20	Permit C from SPAN or Sabah/Sarawak license
General Civil Engineering	General civil engineering construction, maintenance, and repair works	CE21	Technical Personnel (standard for all new contractors)
Synthetic Playing Fields	Construction of synthetic tracks and playing fields	CE22	Letter of Award (LOA)
Prestressing and Post-tensioning	Preparation and installation of prestressed or post-tensioned concrete products	CE23	Letter of Award (LOA)
Tower Structures	Construction and maintenance of telecommunication towers, chimneys, and pylons	CE24	Letter of Award (LOA)
Blasting Works	Rock blasting works for construction site preparation	CE25	Blasting License (Kad Juruletup) from PDRM
Sculptured Structures	Construction and maintenance of monuments, replicas, and sculptures	CE26	Letter of Award (LOA)
Thermal/Refractory Insulation	Thermal insulation and refractory engineering works	CE27	Letter of Award (LOA)
Specialized Concrete Formwork	Specialized concrete formwork systems	CE28	Letter of Award (LOA)
Scaffolding	Erecting, dismantling, and maintaining scaffolding structures	CE29	JKKP Scaffolding Operator Certificate (Individual)
Ground Stabilization	Soil compaction, dewatering, and stabilization works for construction sites	CE30	Letter of Award (LOA)
Underground Cable Structures	Construction of underground cable routes, manholes, and related works	CE31	Letter of Award (LOA)
Civil Engineering Maintenance	General maintenance for civil engineering works	CE32	Letter of Award (LOA)
Tube Wells	Construction of tube wells and water supply drilling systems	CE33	Letter of Award (LOA)
Precast Concrete Installation	Installation of precast concrete components for beams, curbs, and drainage	CE34	Letter of Award (LOA)
Concrete Testing	Non-destructive testing of concrete structures	CE35	Letter of Award (LOA)
Earthworks	Cutting, filling, leveling, and excavation works	CE36	LOA or SKP Module KK-T-021
Power Station Chimneys	Construction of power station chimneys and related structures	CE37	Letter of Award (LOA)
Sewerage System Maintenance	Maintenance and repair of sewerage systems	CE38	Permit D (SPAN) or LOA (Sabah/Sarawak)
Water Supply Maintenance	Maintenance and repair of water supply systems	CE39	Permit D (SPAN) or LOA (Sabah/Sarawak)
Dredging and Erosion Control	River and coastal erosion control works including dredging and breakwaters	CE40	Letter of Award (LOA)
Water Reservoir Construction	Construction of ponds and reservoirs for construction purposes	CE41	Letter of Award (LOA)
Road Painting	Painting of road markings and directional indicators	CE42	Letter of Award (LOA)
Road Furniture	Installation of guardrails, signage, and road safety components	CE43	Letter of Award (LOA)

Mechanical (ME)

Name	Description	Code	Requirements
Air Conditioning and Air Distribution	Installation, testing, maintenance, and repair of air conditioners, cold room chillers, and air distribution systems.	M01	Letter of Award (LOA) or SKP Module KK-T-023.
Fire Prevention and Protection	Installation, testing, maintenance, and repair of fire alarm systems, fire prevention, and fire protection systems.	M02	LOA or SKP Module KK-T-025.
Lifts and Escalators	Installation, testing, maintenance, and repair of lifts, escalators, travelators, and conveyor systems.	M03	LOA or SKP Module KK-T-043.
Building Automation Systems	Installation, testing, maintenance, and repair of industrial building automation and process control systems, including computer-based systems.	M04	LOA or SKP Module KK-T-024.
Workshop, Factory, and Quarry Systems	Maintenance and repair of workshop, factory, and quarry equipment such as cranes, lifting machinery, crushers, and asphalt mixing plants.	M05	Letter of Award (LOA).
Medical Equipment Systems	Installation and repair of medical equipment such as air compressors, medical gas systems, dental chairs, and sterilizers.	M06	Letter of Award (LOA).
Kitchen Equipment Systems	Installation, testing, maintenance, and repair of kitchen equipment and fittings, including LPG systems.	M07	Letter of Award (LOA).
Boiler and Pressure Vessel Systems	Installation and repair of boilers, heat exchangers, and unfired pressure vessels.	M08	Company registration with JKKP.
Compression and Mechanical Generation	Installation and repair of centrifugal/reciprocating compressors, mechanical generators (diesel/hydro-turbine), and hybrid systems.	M09	Letter of Award (LOA).
Cooling Systems for Power Generation	Installation and maintenance of gas turbine-driven cooling systems.	M10	Letter of Award (LOA).
Specialized Construction and Treatment	Maintenance of exhaust stacks, tanks, reactors, piping, furnaces, grit blasting, and insulation.	M11	Letter of Award (LOA).
Specialized Plants	Construction and repair of compressor/metering stations, gas processing plants, petrochemical plants, and oil refineries.	M12	Letter of Award (LOA).
Offshore Drilling Structures	Construction and maintenance of offshore drilling structures and platforms.	M13	Letter of Award (LOA).
Pollution Control Systems	Installation and repair of pollution control equipment for air, water, noise, sewage, and solid waste.	M14	Letter of Award (LOA).
Miscellaneous Mechanical Equipment	Maintenance of generic mechanical equipment, moving rack systems, swimming pool equipment, and hydraulic lift gates.	M15	Technical Personnel, Competent Person, or Agency Registration.
Tower Cranes	Installation, testing, maintenance, and repair of tower cranes, workshop cranes, and building maintenance units (BMU).	M16	Letter of Award (LOA).
Laundry Equipment Systems	Installation, testing, maintenance, and repair of commercial laundry equipment.	M17	Letter of Award (LOA).
Hot Water Systems	Installation, testing, maintenance, and repair of hot water systems including piping.	M18	Letter of Award (LOA).
Plant Equipment Installation	Installation and maintenance of plant equipment such as sewage treatment plants, asphalt plants, and water treatment plants.	M19	Letter of Award (LOA).
General Mechanical Maintenance	General maintenance services for mechanical systems.	M20	Letter of Award (LOA).
Welding Works	Specialized welding works, including railway track welding.	M21	Welding Certificate (Individual).
Pump Systems	Installation and maintenance of irrigation pumps, drainage pumps, and booster pump systems.	M22	Letter of Award (LOA).
SCADA and Telemetry Systems	Installation and maintenance of Supervisory Control and Data Acquisition (SCADA) and telemetry systems.	M23	Letter of Award (LOA).

Electrical (E)

Name	Description	Code	Requirements
Sound System	Installation and maintenance of public address systems, audio-visual systems, conference systems, and intercoms	E01	Letter of Award (LOA) or SKP Module KK-T-044
Surveillance and Security	Installation and maintenance of security control, alarms, CCTV, access card systems, and sensor detection	E02	LOA or SKP Module KK-T-026
Building Automation	Installation and maintenance of industrial building automation and computerized process control systems	E03	Refer to Appendix 6 (Matrix for Competent Person)
Low Voltage Installation	General wiring and maintenance for low voltage (not exceeding 1KV) and lightning protection systems	E04	Company Registration with ST (Form Q) or EIU Sarawak (Form O)
High Voltage (up to 11KV)	Installation and maintenance of high voltage electrical equipment up to 11KV	E05	Refer to Appendix 6
Special Lighting Systems	Specialized lighting for stadiums, gardens, underwater, airports, and hazardous industrial plants	E06	Refer to Appendix 6
Internal Telecoms	Installation and maintenance of telephone cables, internal ducts, radio communications, and PABX systems	E07	Telekom Competency Certificate (Individual – Customer Premise)
External Telecoms	Installation and maintenance of underground telecommunication cables, overhead lines, and manholes	E08	Telekom Competency Certificate (Individual – Network)
Medical Equipment System	Installation and maintenance of surgical theatre tables, nurse call systems, and medical imaging lights	E09	Letter of Award (LOA)
Uninterruptible Power (UPS)	Installation and maintenance of Uninterruptible Power Supply (UPS) systems	E10	Refer to Appendix 6
General Electrical Work	General electrical work not defined under the Electricity Supply Act 1990, including generators below 1KV	E11	Refer to Appendix 6
Electrical Signage	Installation of electrical signs and advertising displays	E12	Company Registration with ST (Form S) or EIU Sarawak (Form O)
Rail Service Telecoms	Installation and maintenance of signaling and telecommunication systems for rail services	E13	Letter of Award (LOA)
Computer Network Cable	Installation of computer network cabling and IT equipment infrastructure	E14	Letter of Award (LOA)
Airport Runway Lights	Installation and maintenance of lighting systems specifically for airport runways	E15	Refer to Appendix 6
Street & Traffic Lights	Installation and maintenance of street lighting and traffic signal systems	E16	Refer to Appendix 6
Low Voltage UG Cable	Installation and maintenance of low voltage underground (UG) cables	E17	Refer to Appendix 6
HV UG Cable (up to 11KV)	Installation and maintenance of high voltage underground cables up to 11KV	E18	Refer to Appendix 6
HV UG Cable (11KV–33KV)	Installation and maintenance of HV underground cables between 11KV and 33KV	E19	Refer to Appendix 6
HV UG Cable (> 33KV)	Installation and maintenance of HV underground cables exceeding 33KV	E20	Refer to Appendix 6
Low Voltage Overhead	Installation and maintenance of low voltage overhead lines	E21	Refer to Appendix 6
HV Overhead (up to 33KV)	Installation and maintenance of high voltage overhead lines up to 33KV	E22	Refer to Appendix 6
HV Overhead (> 33KV)	Installation and maintenance of high voltage overhead lines exceeding 33KV	E23	Refer to Appendix 6
HV Install (11KV–33KV)	Installation and maintenance of high voltage equipment between 11KV and 33KV	E24	Refer to Appendix 6
HV Install (> 33KV)	Installation and maintenance of high voltage equipment exceeding 33KV	E25	Refer to Appendix 6
LV Cable Joint (1KV)	Cable jointing work for low voltage cables below 1KV	E26	Refer to Appendix 6 (Matrix for Cable Jointer)
Cable Joint (up to 11KV)	Cable jointing work for electrical cables up to 11KV	E27	Refer to Appendix 6
Cable Joint (11KV–33KV)	Cable jointing work for electrical cables between 11KV and 33KV	E28	Refer to Appendix 6
Cable Joint (33KV–66KV)	Cable jointing work for electrical cables between 33KV and 66KV	E29	Refer to Appendix 6
Cable Joint (up to 132KV)	Cable jointing work for electrical cables up to 132KV	E30	Refer to Appendix 6
Cable Joint (> 132KV)	Cable jointing work for high voltage cables exceeding 132KV (unrestricted)	E31	Refer to Appendix 6
Low Voltage Generator	Installation and maintenance of low voltage generators not exceeding 1KV	E32	Refer to Appendix 6
HV Generator (up to 33KV)	Installation and maintenance of high voltage generator systems up to 33KV	E33	Refer to Appendix 6
Solar PV (up to 72kW)	Installation of grid-connected solar photovoltaic (PV) systems up to 72kW capacity	E34	SEDA Registered Provider (Company Level)
Solar PV (> 72kW)	Installation of grid-connected solar PV systems exceeding 72kW capacity	E35	SEDA Registered Provider AND Professional Engineer (PE)

Facilities (F)

Name	Description	Code	Requirements
Building and General Infrastructure Facilities	Integrated facility services and building/infrastructure maintenance activities, including engineering and user-related services	F01	Technical Personnel with academic qualifications and documented experience in facility services or maintenance (resume), or relevant degrees in Facility/Asset Management
Healthcare Building Facilities	Integrated facility services and building/infrastructure maintenance, including engineering, biomedical engineering, and user-related services	F02	Technical Personnel with academic qualifications and documented experience in healthcare/hospital facility services or maintenance (resume)

Appendix 6 for Electrical specialisations

Requirements are divided into:

• company and individual certifications, and
• specific competent persons

Company-level requirements

For these codes, the company itself must hold a valid registration with the relevant regulatory agency.

Code	Name	Permit / Certificate / License
E04	Low Voltage Installation	Registration with Suruhanjaya Tenaga (ST) Form Q (Peninsular & Sabah) OR EIU Form O (Sarawak).
E12	Electrical Signage	Registration with ST Form S (Peninsular & Sabah) OR EIU Form O (Sarawak).
E34	Solar PV (Up to 72kW)	Registered Photovoltaic (PV) Service Provider with SEDA.
E35	Solar PV (> 72kW)	Registered PV Service Provider with SEDA AND employ a Professional Engineer (PE) registered with the Board of Engineers Malaysia (BEM).

Individual competency

For these codes, the company must employ an individual who holds the specific competency certificate.

Code	Name	Competency Required
E07	Internal Telecoms	Telekom Competency Certificate (Customer Premise).
E08	External Telecoms	Telekom Competency Certificate (Network).

Electrical competent person (Codes E03–E33)

To register for codes such as E03 (Building Automation), E11 (General Electrical), or various High Voltage codes, the company must employ a Penjaga Jentera (Chargeman) or Jurutera Elektrik Kompeten (Competent Electrical Engineer) with the appropriate level of certification.

• Low Voltage Specialisations (e.g., E03, E11, E16): Require at least a Penjaga Jentera A0 or A1 (Suruhanjaya Tenaga) or H1/L1 (EIU Sarawak).
• High Voltage Specialisations (e.g., E05, E18, E24): Require a Penjaga Jentera BO (11KV or 33KV) or higher.
• Unrestricted High Voltage (Exceeding 33KV): Requires a Jurutera Elektrik Kompeten.

Cable jointer

Registration for cable jointing specialisations is strictly determined by the class of Pencantum Kabel (Cable Jointer) employed by the company.

Required Individual Class	Codes Granted
PK1 (1KV)	E26
PK2 (11KV)	E26, E27
PK3 (33KV)	E26, E27, E28
PK4 (66KV)	E26, E27, E28, E29
PK5 (132KV)	E26, E27, E28, E29, E30
PK6 (No Restriction)	All jointing codes (E26 through E31)

How to change CIDB categories

To change your CIDB registration category or add new specialisations, you must submit a Kemaskini Maklumat Pendaftaran through your CIMS profile, keeping in mind:

• applications can only be submitted by the company owner or director
• you must update your technical personnel details for category updates
• you must meet the eligibility requirements to add new specialisation codes

Applications carry a RM30 processing fee payable within seven days of submission, and upon approval, there is a registration fee of RM100payable within 14 days.

Let MISHU help update your CIDB specialisation

If you’re looking to change CIDB categories or add specialisations, consider engaging our professional CIDB services and we’d love to advise you and help prepare the necessary paperwork, so you just worry about completing your projects!