Below are the various authority codes categorized for easy reference. I also suggest you check out [archi.sg](https://archi.sg/) searchable database of authority circulars and COPs as well as subscribing to [CORENET ](https://info.corenet.gov.sg/resources/circulars)updates.
BCA
[**Circulars**](https://www1.bca.gov.sg/about-us/news-and-publications/circulars)
[All Codes, Acts, and Regulations](https://www1.bca.gov.sg/about-us/news-and-publications/publications-reports/codes-acts-and-regulations) (BCA website)
[**Guidebooks**](https://www1.bca.gov.sg/about-us/news-and-publications/publications-reports/guidebooks)
* **Approved Document**
[Approved Document (Version 7.07 March 2025)](https://www1.bca.gov.sg/docs/default-source/docs-corp-regulatory/approved-document-v7-07.pdf)\
[Approved Document 2019](https://www1.bca.gov.sg/docs/default-source/docs-corp-regulatory/approveddoc.pdf)
[Understanding the Approved Document](https://www.corenet.gov.sg/media/2187004/bca-understanding-the-approved-document-sections-c-to-p-v10.pdf)
* **Accessibility**\
[Code of Accessibility 2025](https://file.go.gov.sg/bca-coa2025.pdf) ([Circular](https://www.corenet.gov.sg/media/2392153/circular_launch_accessibility-code.pdf))
[Code of Accessibility 2019](https://www1.bca.gov.sg/docs/default-source/universaldesign/accessibilitycode2019.pdf)
[Code of Accessibility 2013](https://www1.bca.gov.sg/docs/default-source/universaldesign/accessibilitycode2013.pdf)
* **Buildability**\
[COP 2022](https://www1-bca-gov-sg-admin.cwp.sg/docs/default-source/docs-corp-news-and-publications/publications/codes-acts-and-regulations/cop-on-buildability-20220f6b47e85361460a975ce6e3b54156ac.pdf)\
[Addendum 2 2022](https://www1.bca.gov.sg/docs/default-source/docs-corp-news-and-publications/publications/codes-acts-and-regulations/code-of-practice-on-buildability-2022-edition-_addendum-no-2_final.pdf?sfvrsn=d031d4cc_2)
[Addendum 1 2022](https://www1.bca.gov.sg/docs/default-source/docs-corp-news-and-publications/publications/codes-acts-and-regulations/code-of-practice-on-buildability-2022-edition-_addendum4701f5e120d046988baf88152bc487d7.pdf?sfvrsn=efd1b3ae_0)
Older versions:
[COP 2020](https://www1-bca-gov-sg-admin.cwp.sg/docs/default-source/docs-corp-news-and-publications/publications/codes-acts-and-regulations/cop-on-buildability-2020e7f7044a2d8e4a2ca7daacd64c3f0691.pdf)
[COP 2019](https://www1.bca.gov.sg/docs/default-source/docs-corp-news-and-publications/publications/for-industry/buildability-series/cop-on-buildability-2019.pdf)
[COP 2017](https://www1.bca.gov.sg/docs/default-source/docs-corp-news-and-publications/publications/for-industry/buildability-series/cop2017.pdf)
[COP 2015](https://www1.bca.gov.sg/docs/default-source/docs-corp-news-and-publications/publications/for-industry/buildability-series/copbdnov2015.pdf)
* **Sustainability (Baseline Statutory Requirements)**
[Baseline Requirements](https://www1.bca.gov.sg/buildsg/sustainability/minimum-environmental-sustainability-standard-for-new-buildings-and-existing-buildings-undergoing-major-additions-and-alterations)
[E-Filing Portal](https://www.bca.gov.sg/GreenMarkPortal/forms/eFile_Login.aspx)
[COP ES 4th Edition](https://www1-bca-gov-sg-admin.cwp.sg/docs/default-source/docs-corp-buildsg/sustainability/es-code_reg-2008_edition-4-0.pdf)
[COP ES 3rd Edition](https://www1.bca.gov.sg/docs/default-source/docs-corp-buildsg/sustainability/env_sus_code2013.pdf)
[Addendum 3rd Edition](https://www1.bca.gov.sg/docs/default-source/docs-corp-buildsg/sustainability/addendum_code_3rdedition_rev.pdf)
* **Green Mark 2021**
[Criteria and Forms](https://www1.bca.gov.sg/buildsg/sustainability/green-mark-certification-scheme/green-mark-2021)
[Embodied Carbon Calculator (phasing out soon)](https://docs.google.com/forms/d/e/1FAIpQLSdMr9DR1UFT5LZg5TS5gdlwjdpiMciRmZjirW9d8N5DKN0-SA/viewform)
* **Green Mark 2015-2019**
[Non-Residential 2015](https://www1.bca.gov.sg/docs/default-source/docs-corp-buildsg/sustainability/green_mark_nrb_2015_criteria.pdf)
[Residential 2016](https://www1.bca.gov.sg/docs/default-source/docs-corp-buildsg/sustainability/gm-rb-2016-criteria_rev010120.pdf)
[Landed Houses](https://www1.bca.gov.sg/docs/default-source/docs-corp-buildsg/sustainability/gm_lh_v1.pdf)
[Transit 2018](https://www1.bca.gov.sg/docs/default-source/docs-corp-buildsg/sustainability/gm_ts2018)
* **Universal Design**
[Overview](https://www1.bca.gov.sg/regulatory-info/building-control/universal-design-and-friendly-buildings/universal-design-guide)
[Guide to Universal Design index (UDi) 2022](https://www1.bca.gov.sg/docs/default-source/universaldesign/guide-to-udi.pdf)\
[Universal Design index Checklist (Jun 2022) BP](https://www1.bca.gov.sg/docs/default-source/universaldesign/bca-bp-udi.xlsx?sfvrsn=a631bc37_4)\
[Universal Design index Checklist (Jun 2022) TOPCSC](https://www1.bca.gov.sg/docs/default-source/universaldesign/bca-csc-udi.xlsx?sfvrsn=c23884c0_4)\
[Submission of completed UDi checklist](https://go.gov.sg/bcaudi-sub)\
Older version:
[Universal Design Guide for Public Places 2016](https://www1.bca.gov.sg/docs/default-source/universaldesign/udguide2016.pdf)
* **Lifts**
Refer to SS 550: 2020
[**Good Practice Guide - Wind-Driven Rain in High Rise Residential Developments** ](https://www1.bca.gov.sg/docs/default-source/docs-corp-news-and-publications/publications/good-practice-guide-for-wdr-in-high-rise-residential-developments_v-1-0.pdf?sfvrsn=fcd4c20f_0)
[**Daylight Reflectance Guide**](https://go.gov.sg/bca-daylight-reflectance-guide)
[**Design for Maintainability**](https://www1.bca.gov.sg/buildsg/facilities-management-fm/design-for-maintainability)
[**PPVC (Prefabricated Prefinished Volumetric Construction)**](https://www1.bca.gov.sg/buildsg/productivity/design-for-manufacturing-and-assembly-dfma/prefabricated-prefinished-volumetric-construction-ppvc)
[**PBU (Prefabricated Bathroom Unit)**](https://www1.bca.gov.sg/buildsg/productivity/design-for-manufacturing-and-assembly-dfma/prefabricated-bathroom-unit)
[**MET (Mass Engineered Timber)**](https://www1.bca.gov.sg/buildsg/productivity/design-for-manufacturing-and-assembly-dfma/mass-engineered-timber)
[**IDD, BIM Guide & Resources**](https://www1.bca.gov.sg/buildsg/digitalisation/integrated-digital-delivery-idd/idd-resources)
[**Corenet X**](https://www1.bca.gov.sg/regulatory-info/building-control/corenet-x)
URA
* **DC Handbook**
[Residential Handbook](https://www.ura.gov.sg/Corporate/Guidelines/Development-Control/Residential)
[Non-Residential Handbook](https://www.ura.gov.sg/Corporate/Guidelines/Development-Control/Non-Residential)
* **GFA Handbook**
[Summary PDF](https://www.ura.gov.sg/Corporate/Guidelines/Development-Control/gross-floor-area/GFA/Summary2)
[Online Handbook](https://www.ura.gov.sg/Corporate/Guidelines/Development-Control/gross-floor-area/GFA/Introduction)
* **Development Charge/Land Betterment**
[Land Betterment Charge (from 1/8/2022)](https://www.sla.gov.sg/state-land-n-property/land-sales-and-lease-management/lease-management)
[Development Charge (old)](https://www.ura.gov.sg/Corporate/Guidelines/Development-Control/Planning-Permission/Folder/DC-Charge-Rates)
* **Conservation**
[Conservation Guidelines](https://www.ura.gov.sg/Corporate/Guidelines/Conservation/Conservation-Guidelines)
[Additions & Alterations](https://www.ura.gov.sg/Corporate/Guidelines/Conservation/Additions-Alterations)
[**Urban Design Requirements for Specific Areas**](https://www.ura.gov.sg/Corporate/Guidelines/Urban-Design)
[**Circulars**](https://www.ura.gov.sg/Corporate/Guidelines/Circulars)
SCDF
[**Fire Code 2023 (Web)**](https://www.scdf.gov.sg/firecode2023)
[**Fire Code 2013**](https://www.scdf.gov.sg/home/fire-safety/downloads/acts-codes-regulations/fire-code-2013)
[**Fire Code 2013 Handbook**](https://www.scdf.gov.sg/home/fire-safety/downloads/acts-codes-regulations/fire-code-2013-handbook)
* **Fire Safety Engineering**
[Fire Safety Engineering Guidelines 2015](https://www.scdf.gov.sg/docs/default-source/scdf-library/fssd-downloads/singapore-fire-safety-engineering-guidelines-2015187e16d6ef9a4a6a97564b55d39ea433.pdf)
[FSE Circulars](https://www.scdf.gov.sg/home/fire-safety/plans-and-consultations/performance-based-approach-to-fire-safety-design/circulars-on-performance-based-fire-safety-issues)
Performance Based Provisions
* **Rapid Transit**
[COP 2017](https://www.scdf.gov.sg/docs/default-source/scdf-library/fssd-downloads/rts/cpfprts2017_interactive.pdf?sfvrsn=666c2b99_2)
[COP 2022](https://www.scdf.gov.sg/docs/default-source/scdf-library/fssd-downloads/rts/cpfprts-2022.pdf)
* **Technical Requirements for Household Shelters**
[TRHS 2023 (Web)](https://www.scdf.gov.sg/home/civil-defence-shelter/acts-and-requirements/technical-requirements-for-household-shelters-2023)
[TRHS 2017](https://www.scdf.gov.sg/docs/default-source/scdf-library/fssd-downloads/technical-requirements-for-household-shelters-\(hstr\)-2017_updated-28-may-2018.pdf?sfvrsn=7e339875_0)
[Permitted and non-permitted works in HS](https://www.scdf.gov.sg/docs/default-source/scdf-library/PERMITTED_AND_NOT_PERMITTED_WORKS_FOR_HS.pdf)
* **Storey Shelter**
[TRSS 2021](https://www.scdf.gov.sg/docs/default-source/scdf-library/fssd-downloads/technical-requirements-for-storey-shelters-2021.pdf)
[Permitted & Not Permitted Works in SS](https://www.scdf.gov.sg/docs/default-source/scdf-library/PERMITTED_AND_NOT_PERMITTED_WORKS_IN_SS.pdf)
[**Shelter Circulars**](https://www.corenet.gov.sg/general/E-Info/Circulars.aspx?startDate=11/04/2016\&agency=-1)
[**Fire Code Circulars**](https://www.corenet.gov.sg/general/e-info/Circulars.aspx?startDate=22/05/2014\&agency=66369\&page=0)
NEA
Website -
* **Environmental Health**\
[COPEH 2024](https://www.nea.gov.sg/docs/default-source/resource/practices-/copeh-2024.pdf)
[COPEH 2021](https://www.nea.gov.sg/docs/default-source/resource/practices-/copeh-2021.pdf)
[COPEH 2017](https://www.nea.gov.sg/docs/default-source/resource/practices-/copeh---2017-\(aug\).pdf)
* **Boundary Noise Limits**
[Boundary Noise Limits](https://www.nea.gov.sg/our-services/pollution-control/noise-pollution/industrial-noise-control)
[Technical Guide for Boundary Noise Limits](https://www.nea.gov.sg/docs/default-source/default-document-library/technical-guideline-on-boundary-noise-limit-for-air-conditioning-and-mechanical-ventilation-systems-in-non-industrial-buildings---feb-2018.pdf)
* **Noise Impact Assessment**
[Technical Guideline For Land Traffic Noise Impact Assessment](https://www.nea.gov.sg/docs/default-source/our-services/technical-guidelines-for-noise-impact-assessment-.pdf)
* **Trade Effluent**
[Allowable Limits for Trade Effluent Discharge to Watercourse or Controlled Watercourse](https://www.nea.gov.sg/our-services/pollution-control/water-quality/allowable-limits-for-trade-effluent-discharge-to-watercourse-or-controlled-watercourse)
* **Cooling Towers**
[COP for Control of Legionella Bacteria in Cooling Towers](https://www.nea.gov.sg/docs/default-source/our-services/code-of-practice-for-control-of-legionella-bacteria-in-cooling-towers-\(160-kb\).pdf) (merged with COPEH 2024)
PUB
Website to view more guides and handbooks\
* **Surface Water Drainage**
[COP 7th Edition with addendum](https://www.pub.gov.sg/Documents/COP_Surface%20Water%20Drainage_7th%20Ed%20Add.%201.pdf)
[Appendix & Standard Drawings](https://www.pub.gov.sg/compliance/industry/drawings)
* **Sanitary / Sewerage Works**\
[CODE OF PRACTICE ON SEWERAGE AND SANITARY WORKS
\
(3rd EDITION – MAR 2025)](https://www.pub.gov.sg/-/media/PUB/PDF/Code-of-Practice-on-Sewerage-and-Sanitary-Works-3rd-Edition--Mar-2025.pdf) ([Circular](https://www.pub.gov.sg/-/media/PUB/PDF/Circulars/Building-Plans/PUBCircular-for-COPSSW-3rd-Ed-20251Mar-2025.pdf))
[CODE OF PRACTICE ON SEWERAGE AND SANITARY WORKS P 2nd Edition 2019 with Addendum](https://www.pub.gov.sg/Documents/COPSSW2nded2019AddendumNo1_final.pdf)
[Sanitary Drawings](https://www.pub.gov.sg/compliance/industry/drawings)
* **Water**
Refer to SS 636:2018
* Active Beautiful Clean Waters (ABC) Waters Design Guidelines\
[ABC Waters Design Guidelines](https://www.pub.gov.sg/-/media/PUB/PDF/ABC_Waters_Design_Guidelines.pdf)\
[Condensed Booklet of Engineering Procedures](https://www.pub.gov.sg/-/media/PUB/Reservoirs/ABC/PDF/Condensed_Booklet_of_Engin_Procedures.pdf)\
[Engineering Procedures for ABC Waters Design Features (2024 Edition) ](https://www.pub.gov.sg/-/media/PUB/PDF/Compliance/ABC-Waters-Design-Guidelines/Engineering-Procedures-for-ABC-Waters-Design-Features-2024-Edition.pdf)\
[Declaration Form for ABC Water Design Features](https://www.pub.gov.sg/-/media/PUB/PDF/Compliance/ABC-Waters-Design-Guidelines/Declaration-Form-for-ABC-Waters-Design-Features.docx)
LTA
Quick Guides (very useful)\
* **Street Works (Road & Transport)**
[Forms & Guides](https://www.lta.gov.sg/content/ltagov/en/industry_innovations/industry_matters/development_construction_resources/street-work-proposals/codes_of_practice_standards_specifications_guides_and_forms.html)
[Code of Practice on Street Works Proposals relating to Development Works (Version 2.0, Apr 2019)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/Street_Work_Proposals/codes_of_practice/RT-COP_V2.0_April_2019.pdf)
[Code of Practice for Works on Public Streets (PDF, 1.3MB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/public_streets/pdf/COP_for_Works_on_Public_Streets_Mar2022Ed.pdf)
[Code of Practice for Traffic Control at Work Zone (PDF, 1.9MB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/Street_Work_Proposals/codes_of_practice/COP_Traffic_Control_at_Work_Zone_July_2019_Edition.pdf)
* **Vehicle Parking**
[Forms & Guides](https://www.lta.gov.sg/content/ltagov/en/industry_innovations/industry_matters/development_construction_resources/vehicle-parking-proposals/codes_forms_and_epayment_services.html)
[Code of Practice on Vehicle Parking Provision in Development Proposals 2019](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/Vehicle_Parking_Proposals/COP_on_Vehicle_Parking_Provision_in_Development_Proposals-2019_Edition.pdf)
* **Railway Protection**\
[COP for Railway Protection 2024](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/Building_Works_Restricted_Activities_in_Railway_Protection_Zone/Codes_of_Practice_Standards_Specifications_Guides_Forms/code_of_practice_for_railway_protection_2024_edition.pdf)
[Forms & Guides](https://www.lta.gov.sg/content/ltagov/en/industry_innovations/industry_matters/development_construction_resources/building-works---restricted-activities-in-railway-protection-zon/Codes_of_practice_standards_specifications_guides_and_forms.html)
[COP for Railway Protection](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/Building_Works_Restricted_Activities_in_Railway_Protection_Zone/Codes_of_Practice_Standards_Specifications_Guides_Forms/Code_of_Practice_for_Railway_Protection.pdf)
**Transport Infrastructure Design Criteria & Specifications**\
[**https://www.lta.gov.sg/content/ltagov/en/industry\_innovations/industry\_matters/development\_construction\_resources/Transport\_Infrastructure\_Design\_Criteria\_and\_Specifications.html**](https://www.lta.gov.sg/content/ltagov/en/industry_innovations/industry_matters/development_construction_resources/Transport_Infrastructure_Design_Criteria_and_Specifications.html)
* **Architectural Design Criteria (Revision A4, June 2015)**
[Section 2 - Architectural Design Requirements (PDF, 292kB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/pdf/TransportInfrastructure/ADC_RevA4/ADC%20Section%202_Architectural%20Design%20Requirements.pdf)\
[Section 4 - Commuter Facilities Design Requirements and Checklist Forms (PDF, 1.4MB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/pdf/TransportInfrastructure/ADC_RevA4/ADC%20Section%204_CF%20Design%20Requirements%20and%20Checklist%20Forms%20for%20Bus%20Interchanges.pdf)\
[Attachments to Section 4.3 - Bus Interchange (PDF, 956kB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/pdf/TransportInfrastructure/ADC_RevA4/Attachments%20to%20Section%204.3_Bus%20Interchange.pdf)
* Infrastructure Design Criteria (Revision A1, 2022)
* [Volume A: Introduction & Objectives (PDF, 241kB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/pdf/TransportInfrastructure/IDC_revA1_2023/IDC_VolA_RevA1.pdf)
* Volume B: Rail Infrastructure
* [Part I: MRT Station Requirements (PDF, 1.8MB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/pdf/TransportInfrastructure/IDC_revA1_2023/IDC_VOLB1_MRTSTATION_RevA1_Chapters.pdf)
* [Part I: Annexes (PDF, 2.5MB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/pdf/TransportInfrastructure/IDC_revA1_2023/IDC_VOLB1_MRTSTATION_RevA1_Annexes.pdf)
* Volume C: Commuter Infrastructure
* [Commuter Infrastructure Requirements (PDF, 6.5MB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/pdf/TransportInfrastructure/IDC_revA1_2023/IDC_VOLC_CH1to6_with%20_checklists2.pdf)
* [Annexes (PDF, 8.6MB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/pdf/TransportInfrastructure/IDC_revA1_2023/IDC%20VOL%20C%20_AnxAtoF_2025.pdf)
* Volume D: Bus Infrastructure
* Refer to Architecture Design Criteria Section 2 and 4.1 – 4.3 for Bus Interchange Requirements.
* **Civil Design Critieria**
* [Civil Design Criteria (Revision A2, Sep 2019) (PDF, 6.1MB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/pdf/TransportInfrastructure/civil_standards/pdf/EGD09106A2_Overall.pdf)
* **Standard Details of Road Elements (Revision G, 2025)**
The SDRE sets standards and guidelines for common road elements such as drains, kerbs and pavements as a reference for road construction.
* \[NEW\*] [The Standard Details of Road Elements (Revision G – MAR 2025) (PDF, 910kB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/Street_Work_Proposals/Standards_and_Specifications/SDRE/Content_Page_March_2025.pdf)
* [The Standard Details of Road Elements (Revision F - APR 2024) (PDF, 894kB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/Street_Work_Proposals/Standards_and_Specifications/SDRE/Content_Page_April_2024.pdf)
*\*Note: The updated SDRE (Revision G – MAR 2025) will take effect from 1 June 2025. The existing version of the SDRE (Revision F – APR 2024) will no longer be available online from 1 June 2025.*
[**Transport Impact Assessment (TIA) Guidelines for Developments**](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/Street_Work_Proposals/Guidelines/TIA_Guidelines_WCP_Final_07Dec2018.pdf)
[**Guidebook on Lodgement of Development Submissions**](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/Street_Work_Proposals/Guidelines/Lodgement_Guidebook_V1.0.pdf)
#### J-walk Guidelines
The J-walk Guidelines set the guidelines for Wayfinding Signage across the Jurong Lake District 2nd Storey Pedestrian Network.
* [J-Walk Guidelines (PDF, 1.1MB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/pdf/TransportInfrastructure/Jwalk/20150209%20j%20walk%20signage%20guidelines.pdf)
#### Architectural Materials & Workmanship Specifications (Revision A1, June 2009)
* [Architectural M & W Spec Rev A1 Sections 10 to 110 (PDF, 796kB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/pdf/TransportInfrastructure/arch_mwspecs/Architectural%20MW%20Spec%20Rev%20A1%20Sections%2010%20to%20110.pdf)
* [Architectural M & W Spec Rev A1 Sections 120 to 220 (PDF, 1MB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/pdf/TransportInfrastructure/arch_mwspecs/Architectural%20MW%20Spec%20Rev%20A1%20Sections%20120%20to%20220.pdf)
* [Architectural M & W Spec Rev A1 Sections 230 to 380 (PDF, 1.1MB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/pdf/TransportInfrastructure/arch_mwspecs/Architectural%20MW%20Spec%20Rev%20A1%20Sections%20230%20to%20380.pdf)
#### Materials & Workmanship Specifications for Civil & Structural Works (Revision A2, Sep 2020)
* [Materials and Workmanship Specifications for Civil and Structural Works (Revision A2, Sep 2020) (PDF, 6.3MB)](https://www.lta.gov.sg/content/dam/ltagov/industry_innovations/industry_matters/development_construction_resources/civil_standards/pdf/EGD09104A2-Overall.pdf)
NPARKS
[**Guidelines for Greenery Provision**](https://www.nparks.gov.sg/-/media/nparks-real-content/partner-us/nparks-handbook-version-4.ashx) **(Version 4)**
[**Flora Fauna Web**](https://www.nparks.gov.sg/florafaunaweb)
[**Circulars**](https://www.nparks.gov.sg/partner-us/development-plan-submission/circulars)
WSH
[**Code of Practice for Working Safely at Heights**](https://www.tal.sg/wshc/-/media/tal/wshc/resources/publications/codes-of-practice/files/wsh-code-of-practice-2013_ebook.ashx)
[**Confined Spaces**](https://www.tal.sg/wshc/-/media/tal/wshc/resources/publications/technical-advisories/files/cs2.ashx)
[**Design for Safety**](https://www.tal.sg/wshc/-/media/tal/wshc/resources/publications/wsh-guidelines/files/dfs.ashx)
{% tabs %}
{% tab title="Others" %}
#### SPPG
[**Electrical Substation**](https://www.spgroup.com.sg/wcm/connect/spgrp/a6da2da5-ff92-4e9d-9a0a-d3de57e1c3b5/Guide+How+to+Apply+for+Electricity+Connection_Oct+2022.pdf)
***
#### CityGas
[**Handbook on Gas Supply**](https://www.cityenergy.com.sg/wp-content/uploads/2021/11/City-Energy-Handbook-on-Gas-Supply-Dec-2021.pdf)
***
#### Singpost
[**Letterbox Specifications & Guidelines**](https://www.singpost.com/sites/default/files/2022-03/General%20Guidelines%20on%20Letterboxes%20\(Revised%20%26%20Approved%20by%20IDA%20on%202%20Oct%2020....pdf)
***
#### IMDA (TFCC)
Code of Practice for Info-communication Facilities in Buildings (COPIF)
(for overview and older versions)
[Code of Practice for Info Communication Facilities (COPIF) 2018](https://www.imda.gov.sg/-/media/imda/files/regulation-licensing-and-consultations/consultations/completed-consultations/consultation-papers/11/copif-2018.pdf)
[2018 Guidelines](https://www.imda.gov.sg/-/media/Imda/Files/Regulation-Licensing-and-Consultations/Consultations/completed-consultations/consultation-papers/11/Guidelines-2018.pdf)
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Do consult your seniors and QPs if you’re not sure on certain clauses.
It is important to understand the spirit of the clauses are (ie. why there are implemented in the first place)
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