https://www1.bca.gov.sg/resources/circulars/ Catch up with the latest circulars on this page. en Wed, 30 Sep 2026 16:22:34 +0800 Isomer (https://www.isomer.gov.sg) https://isomer-user-content.by.gov.sg/338/958ac203-6637-4bb0-a2a3-5546c0fb3209/Advisory%20-%20Installing%20non-lift%20components%20in%20lift%20control%20panel.pdfurn:isomer:resource:422341Wed, 30 Sep 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/cf563fce-5e34-4687-a441-bed9a7dcc413/2026_09_30%20Circular%20on%20Further%20Extension%20of%20Support%20Measure%20to%20Contractors.pdfurn:isomer:resource:422288Wed, 30 Sep 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/861d2c33-6899-44b5-aab4-2620f0759683/Enhancements%20to%20AC%20System%20Circular.pdfurn:isomer:resource:421512Wed, 23 Sep 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/d7a7c699-1740-4e0d-bc66-ab5941f29c3c/20260922-%20Central%20Reinforcing%20Steel%20Registry%20-%20Framework%20for%20Centralised%20Testing.pdfurn:isomer:resource:422284This circular is to inform the industry of a proposed framework to streamline testing steel reinforcement bar (rebar) at project sites for rebars derived from the same supply sources produced under a permanent system of factory production control.Tue, 22 Sep 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/69c23704-8251-4ed9-8d95-e8d07115b4b3/CORENET%20X%20INDUSTRY%20CIRCULAR%20ON%20LAUNCH%20OF%20Code%20of%20Practice%20(COP)%204th%20Edition.pdfurn:isomer:resource:421145Tue, 22 Sep 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/3a7c79de-e199-40b0-8c58-e741c3c6ed11/Circular%20on%20Streamlining%20of%20TOPCSC%20Processes%20Through%20WOG%20VI.pdfurn:isomer:resource:403955Mon, 07 Sep 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/ef30d08c-2b00-466a-b71b-21198b66b007/Industry%20Circular_20260902_GMv7_Final_.pdfurn:isomer:resource:394384Wed, 02 Sep 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/edc55f14-7834-4764-80a4-40f9da3cfbd7/Advisory%20on%20Safe%20Installation%20Inspection%20and%20Maintenance%20of%20Suspended%20Ceiling%20Systems.pdfurn:isomer:resource:403868Tue, 01 Sep 2026 00:00:00 +0800Circulars https://info.corenet.gov.sg/docs/default-source/bca-circulars/20260901---standardised-sampling-rate---identity-testing-for-compressive-strength-of-concrete.pdf?sfvrsn=6c5a049d_1urn:isomer:resource:403908This circular provides guidance on the standardised sampling rate in relation to identity testing for compressive strength of concrete.Tue, 01 Sep 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/d4ca0f2e-7801-464f-885c-4351cf619046/Circular%20on%20Proactive%20Fa%C3%A7ade%20Maintenance.pdfurn:isomer:resource:403805This circular provides guidance to support building owners in planning and undertaking of proactive maintenance. It aims to facilitate systematic inspections and timely interventions to enhance façade resilience, improve public safety, and support more cost-effective building life-cycle management.Tue, 01 Sep 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/ea99df85-8092-45c4-b9a0-f8606f58481f/FINAL%20Industry%20Circular.pdfurn:isomer:resource:403900This circular is to encourage industry to tap on the Inter-Agency Coordinating Committee (IACC) Resolution platform for expedient resolution of issues arising from conflicting regulatory requirements encountered by the project parties in their projects. This circular also updates the industry on the launch of FormSG, which will replace the existing submission process for IACC case lodgements, making it faster, simpler and more efficient for users to lodge cases.Tue, 01 Sep 2026 00:00:00 +0800Circulars https://info.corenet.gov.sg/docs/default-source/bca-circulars/appbca-2026-15-key-considerations-fr-pias.pdf?sfvrsn=279121c4_1urn:isomer:resource:403873This circular outlines the key considerations for the design and construction of post-installed anchors (PIAs) to ensure structural safety. Annex A provides practical guidance covering connection design, material selection, product qualification, installation, and quality assurance.Tue, 01 Sep 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/e64117ea-1b38-4ab3-b063-c9e8e4467168/Facilitating%20the%20Entry%20of%20Authorised%20Officers%20into%20Condominium%20Premises.pdfurn:isomer:resource:402212Mon, 31 Aug 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/8c0a94fc-4542-4c79-8219-42355e48b4c8/Circular%20on%20Adhoc%20Feedback,%20Revised%20FM%20Guide%202.pdfurn:isomer:resource:387461Mon, 03 Aug 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/8cd2def2-f218-48a4-89eb-affaaa7e68b5/Circular%20on%20Further%20Extension%20of%20Support%20Measure%20to%20Contractors.pdfurn:isomer:resource:383283Wed, 29 Jul 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/52dfde8c-8557-4825-b7fe-e603a3f5bba1/Circular%20for%20Updates%20to%20CORENET%20X%20Implementation%20Plan.pdfurn:isomer:resource:367181Thu, 23 Jul 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/6633523b-fa46-491f-89f1-1bb4208af724/APPBCA-2026-11%20RSS%20Guidebook%20V2%20Circular.pdfurn:isomer:resource:349574Wed, 15 Jul 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/807a5ea4-14b1-42c2-a01c-c0ba580d3062/Circular-on-miscellaneous-BSMA-amendments.pdfurn:isomer:resource:342601Wed, 01 Jul 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/05c46a6d-7544-4c24-83a5-f80c9010bcef/2026_06_26%20Circular%20on%20Further%20Extension%20of%20Support%20Measure%20to%20Contractors%201.pdfurn:isomer:resource:321769Fri, 26 Jun 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/13e0da06-82e6-421d-9f0c-677cc9c209dc/Circular%20on%20Energy%20Efficiency%20Grant%20Pre-approved%20List%20Update%20and%20Extension%20(EEG).pdfurn:isomer:resource:305936This circular informs the industry of the timeline extension of the Energy Efficiency Grant (EEG) and the expansion of the EEG (Base Tier) pre-approved list for the Construction sector.Mon, 15 Jun 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/273f21d8-d6f7-4f36-a9b1-99861bd9ce98/consolidated-questions-answers-from-the-bca-annual-sharing-on-bptop-regulatory-updates-2026.pdfurn:isomer:resource:270096Wed, 03 Jun 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/3eda22da-dd4c-48c2-953e-670de9b20ef0/Circular%20on%20Extension%20of%20Support%20Measure%20to%20Contractors.pdfurn:isomer:resource:264141Thu, 28 May 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/b6556193-1952-4cbf-920d-5ad324f86b37/Disqualification%20and%20Suspension%20Framework.pdfurn:isomer:resource:263271Fri, 22 May 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/16b862a8-af5d-46ba-be39-49fdd818ca38/NEW%20REQUIREMENTS%20UNDER%20THE%20BUILDING%20CONTROL%20(OUTDOOR%20ADVERTISING)%20(AMENDMENT)%20REGULATIONS%202026.pdfurn:isomer:resource:240338Tue, 12 May 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/6bfbcad6-296d-446a-a1e3-1b1c2491ac39/Joint%20BCA-URA%20circular%20on%20pilot%20project%20for%20usage%20declaration%20in%20shophouses%20during%20the%20PSI.pdfurn:isomer:resource:232806Thu, 07 May 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/7cb01dcb-a8e0-4b49-906d-88d6ecf2620c/Circular%20on%20Buildability%20Type%20Approval.pdfurn:isomer:resource:220339Thu, 30 Apr 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/f6efa228-32d1-4c9f-a75c-f906cee0c37f/20260417_circular-on-streamlined-plan-fees-for-ana-and-amendment.pdfurn:isomer:resource:202124Fri, 17 Apr 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/e9773b1d-5b74-45d4-a301-fb4852b5d67c/CIRCULAR%20ON%20EX-GRATIA%20COST%20SHARING%20FOR%20DIESEL%20AND%20BITUMEN%20IN%20ONGOING%20CRITICAL%20PUBLIC%20SECTOR.pdfurn:isomer:resource:188658Tue, 07 Apr 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/80d5bbc7-7df2-45ec-85f8-54efef490f27/Circular%20on%20Productivity%20Solutions%20Grant%20(PSG)%20for%20the%20Built%20Environment_1%20Apr%202026.pdfurn:isomer:resource:182826Tue, 31 Mar 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/83e13cdb-9b96-4592-9640-ad95ef196a6a/Final_Industry%20Circular_Recognising%20Class%204%20for%20WPH%20in%20Full-time%20Driver%20Occupations.pdfurn:isomer:resource:181647Mon, 30 Mar 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/a0619ef0-e1e1-4c66-a242-e30e34bdac3a/circular-on-reminder-on-proper-conduct-of-periodic-structural-inspections-(psi)-and-expectations.pdfurn:isomer:resource:168952Mon, 02 Mar 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/6dcaf8dd-6732-4f5e-945b-6b367d970492/circular-appbca-2026-04-companion-guide-for-coa2025.pdfurn:isomer:resource:168949Mon, 02 Mar 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/ad61ce3e-efe0-4ac4-bde1-d92d2cb8232d/appbca-2026-01-reused_steel_framework_enhancements.pdfurn:isomer:resource:168948Mon, 02 Mar 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/b845893c-e6b6-45bb-8af4-e11805993821/circular---updates-to-corenet-x-payment-methods.pdfurn:isomer:resource:168951Mon, 02 Mar 2026 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/b660973d-2c67-4c85-83b7-3a3a8ea38683/joint-bca-pdpc-circular-(10-dec-2025).pdfurn:isomer:resource:149948Wed, 10 Dec 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/0b454bf6-efb7-4b7e-a4ff-8e087a10b814/circular---adoption-of-ss626_2024.pdfurn:isomer:resource:149679Mon, 01 Dec 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/74e22853-6370-4044-9d57-e2ff699adb0d/circular-on-agencies-service-standards-for-topcsc-inspection-arrangements-and-post-inspection-response-time_1-dec-2025.pdfurn:isomer:resource:149695Mon, 01 Dec 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/32b6902b-5457-4e94-94a5-051b7f2310d0/circular-guidance-on-naming-of-communal-facilities-and-features-in-residential-units-in-approved-plans-and-marketing-materials-for-greater-clarity-and-transparency.pdfurn:isomer:resource:149685Mon, 01 Dec 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/b4cc2066-8550-4565-a171-5b282fb4a9bc/guideline-on-ensuring-integrity-of-sheet-pile-wall-to-prevent-ground-loss-20251127.pdfurn:isomer:resource:149909Mon, 01 Dec 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/1387c505-dbbb-4d3a-992c-1ef9904e3288/appbca-2025-27.pdfurn:isomer:resource:149601Mon, 01 Dec 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/d9db221d-fb1b-4682-96e8-6599869caf58/circular_automated-cpd-submission_final_1.pdfurn:isomer:resource:149682Mon, 01 Dec 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/1590f52b-e495-4154-a6ef-7c24476ff66b/circular-appbca-2025-28-sfrc.pdfurn:isomer:resource:149681Mon, 01 Dec 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/e9ff1ed3-dafb-48fb-9978-1f381e5df28e/advisory-to-town-councils-on-regular-maintenance-of-buildings.pdfurn:isomer:resource:149593Fri, 21 Nov 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/63ac2885-6946-4fee-922c-3341881110d1/circular-on-launch-of-conquas-(private-residential).pdfurn:isomer:resource:149775Thu, 13 Nov 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/2498e1f9-a622-4ecc-9389-0a6e764107b6/circular-on-streamlined-plan-fees.pdfurn:isomer:resource:149825Wed, 12 Nov 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/67c62b8d-6fa6-472d-99b6-1bd1fe4839df/industry-circular_21-oct-2025-(effective-1-dec-2025).pdfurn:isomer:resource:149738Tue, 21 Oct 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/a7d5d5e2-b209-4780-8bf8-916ee933493d/Circular%20-%20Implementation%20of%20regulations%20for%20fixed%20installations%20and%20exterior%20features.pdfurn:isomer:resource:149773Tue, 21 Oct 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/f219e284-0b08-4deb-a90f-5f870e034ec1/bca-circular-on-updates-to-the-approved-document.pdfurn:isomer:resource:149850Tue, 30 Sep 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/3a330cb4-865a-4f72-8c97-daa25ca6dcc4/circular-on-updates-to-the-approved-document.pdfurn:isomer:resource:149630Tue, 30 Sep 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/d360d44c-ed08-48fd-a34b-3a87ab07ff7d/circular-on-managing-agent-performance-rating-survey-(part-2-of-2)%20.pdfurn:isomer:resource:149781Tue, 16 Sep 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/98e18a02-6b0b-429f-8c43-d4410f5d6a09/circular-on-guidelines-for-the-design-and-construction-of-bored-piles-in-limestone-areas.pdfurn:isomer:resource:149765Mon, 01 Sep 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/c7a4aab3-a3c8-4694-8d50-4ad91bc63018/guidelines-for-use-of-drainage-blanket-beneath-base-slab-v2.pdfurn:isomer:resource:149766Mon, 01 Sep 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/2d45342d-878f-407b-848c-1ff1a00c9fae/circular-on-guidelines-on-requirements-for-site-investigation-reports.pdfurn:isomer:resource:149769Mon, 01 Sep 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/fc349219-4095-4c99-b0f4-32895e4d79e6/circular-on-ma-performance-rating-survey-(part-1).pdfurn:isomer:resource:149780Mon, 01 Sep 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/40cb90ca-6488-472f-8fdb-459e0b88db61/appbca-2025-19-ss-en-206-ss-544.pdfurn:isomer:resource:149815Mon, 01 Sep 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/53194b50-206e-4a67-a400-805763a672c3/circular-on-ss-en-13791-2024.pdfurn:isomer:resource:149816Mon, 01 Sep 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/95c59b3e-c98b-44aa-904b-e5669f2eb453/circular-on-submission-of-lightning-protection-system-plans.pdfurn:isomer:resource:149830Mon, 01 Sep 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/43f07816-7741-42ad-af0b-8d3b8e3fd8a3/circular-on-launch-of-nec4-y(sg)-w-and-z-clauses-for-nec4-facilities-management-contract-(fmc).pdfurn:isomer:resource:149777Fri, 15 Aug 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/77b107dc-db74-4d03-b4a8-afe95f60c6d3/circular-on-revised-implementation-date-for-building-control-regulations-for-fixed-installations.pdfurn:isomer:resource:149813Mon, 16 Jun 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/c2b3f8a5-4f17-436a-ab31-725175ea82a2/circular-on-revised-bca-green-mark-criteria-for-user-centric-schemes-new-bca-green-mark-for-interiors-(gmi)-scheme.pdfurn:isomer:resource:149811Fri, 13 Jun 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/a38d632e-1d14-4ff9-988d-122b5d446324/circular-on-advisory-to-reflect-maintenance-spaces-requiring-access-by-maintenance-personnel-in-building-plans.pdfurn:isomer:resource:149592Mon, 02 Jun 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/5be93c1c-bf99-4666-a6f8-8ded47745cd3/circular-facade-inspectors-regulations-amendments.pdfurn:isomer:resource:149702Mon, 02 Jun 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/c71b6062-34bd-487c-8fe6-98f3732a80a6/circular-on-the-implementation-of-mei-regime.pdfurn:isomer:resource:149837Mon, 02 Jun 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/8c027be3-ef74-491d-8b4a-52794d0f9c5c/joint-circular-on-multi-agency-position-on-double-slab-design.pdfurn:isomer:resource:149950Mon, 02 Jun 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/fda5fe81-eecf-44d4-877d-834786aa8656/circular---reminder-on-regular-inspection-and-maintenance-of-buildings-to-enhance-safety.pdfurn:isomer:resource:150059Mon, 02 Jun 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/f9273329-bfb2-418c-b8e2-52750d374b42/circular-on-use-of-accredited-drone-service-providers-for-periodic-facade-inspections.pdfurn:isomer:resource:149854Fri, 23 May 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/d17a031a-be55-4464-8451-4657e2c401eb/circular-on-fees-payable-for-application-for-approval-of-plans-for-facade-addition-and-alteratio.pdfurn:isomer:resource:149754Wed, 21 May 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/7b853e9f-16dd-419c-8515-827d96bcdec4/circular-on-built-environment-technology-and-capability-(betc)-grant-for-built-environment-firms.pdfurn:isomer:resource:149705Mon, 07 Apr 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/41e161a0-40b4-4998-bb89-9f1deff86fe9/circular---code-on-accessibility-in-the-built-environment-2025.pdfurn:isomer:resource:149718Mon, 07 Apr 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/93e4bb92-22a6-4eb9-87d5-80701936708a/circular-on-good-practice-guide-for-wind-driven-rain-in-high-rise-residential-developments.pdfurn:isomer:resource:149761Mon, 03 Mar 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/2d1abf25-fdea-44ef-934a-c2d9be7f58b9/circular-on-guidebook-for-virtual-top_csc-(360-capture)-and-guidebook-for-site-management-platforms-(part-a)81990220-90aa-49a8-b68b-8b478fce10d5.pdfurn:isomer:resource:149763Mon, 03 Mar 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/c262cbf5-930b-488c-90fe-ba8aaf4e6275/circular-on-practical-guide-for-post-installed-reinforcement.pdfurn:isomer:resource:149794Mon, 03 Mar 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/3a330cb4-865a-4f72-8c97-daa25ca6dcc4/circular-on-updates-to-the-approved-document.pdfurn:isomer:resource:149849Mon, 03 Mar 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/a6f0fed4-13fc-4d80-be0b-b7ef002306e3/circular-on-public-sector-standard-conditions-of-contract-lite-(psscoc-lite)-for-tender-lite-(construction).pdfurn:isomer:resource:150048Mon, 03 Mar 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/1194056f-1477-4dda-9527-d5af82e96d6c/circular---companies-are-not-allowed-to-hire-phantom-local-workers.pdfurn:isomer:resource:149871Fri, 14 Feb 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/923b5b3f-522e-4a40-b7b4-1acfcd02d6f4/circular---safe-design-and-installation-of-outriggers-or-overhead-supports-for-suspended-scaffold.pdfurn:isomer:resource:149821Fri, 31 Jan 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/f5669f0d-8b5b-4c33-9de0-3a58ba3faced/circular-for-updates-to-corenet-x-implementation-plan.pdfurn:isomer:resource:149684Thu, 23 Jan 2025 00:00:00 +0800Circulars https://isomer-user-content.by.gov.sg/338/cfc5ca17-f0dd-4f1c-b179-47fc1eba79c4/circular---nec4-ecc-w-and-z-clauses.pdfurn:isomer:resource:149856Thu, 23 Jan 2025 00:00:00 +0800Circulars 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