If your building has received a Mandatory Energy Improvement audit notice, statutory deadlines are already running. Missing even the first milestone, engaging a qualified professional, is a separate offence under the Building Control Act.

Standard at a Glance

What the MEI Regime Is

The MEI regime is a mandatory energy performance improvement programme for existing energy-intensive buildings in Singapore. BCA administers it under Part 3B of the Building Control Act 1989, as amended on 10 September 2024 and gazetted on 11 October 2024. Requirements are elaborated in the Code on Mandatory Energy Improvement for Existing Buildings (MEI Code), Edition 1.0, published June 2025.

The regime closes a specific regulatory gap. Before MEI, an existing building with poor energy performance, but no planned major retrofit, faced no legal obligation to improve. Buildings are a notable source of Singapore’s carbon emissions, and MEI forms part of the pathway to net-zero by 2050. Verify the current emissions figure directly with BCA.

MEI is not the same as these sibling schemes:

• BCA Green Mark, a rating system covering broader environmental sustainability; mandatory for new buildings and major retrofits, voluntary for other existing buildings. A Green Mark-certified building can still receive an MEI audit notice if its EUI exceeds the threshold for three consecutive years.
• Periodic Energy Audit (PEA), a separate regime under the same 2013 regulations, focused on cooling-system efficiency on a recurring cycle. MEI targets whole-building EUI reduction for poor performers.

The Four-Stage Compliance Process

Each stage below is a statutory obligation under the Building Control Act. Missing any deadline is a separate offence.

• Stage 1, Engage a Specified Individual within the notice deadline. A Specified Individual is either a BCA-registered Energy Auditor holding a current e-certificate of registration valid for 3 years, or a Professional Engineer registered in the Mechanical branch with the Professional Engineers Board Singapore. Start procurement the day the notice arrives, the window is tight for scoping, tendering, and contracting. Confirm the exact deadline with BCA on receipt of your notice.
• Confirm the current requirement directly with the relevant authority. Once submitted, the EEIP becomes a binding compliance obligation. Any deviation requires prior approval from the Commissioner of Building Control; deviating without approval is a separate statutory offence.
• Stage 3, Implement EEIP measures and achieve the required EUI reduction within the prescribed implementation period. Confirm the exact implementation window with BCA. Measures can range from replacing faulty sensors and insulating hot water systems to full chiller retrofits. Confirm the current requirement directly with the relevant authority. On completion, a certificate of completion and supporting energy data go to BCA, and this submission starts the Stage 4 clock.
• Stage 4, Maintain the reduced EUI for one year, then submit a maintenance report within the prescribed period. Confirm the exact reporting deadline with BCA. If performance drifts below target during the maintenance period, the report must include supplemental EEIP measures. The Commissioner may also issue a written direction requiring a supplemental improvement plan, non-compliance with that direction carries additional penalties.

The total compliance cycle runs approximately five years from notice to final maintenance report, based on the published statutory timelines.

Who the Regime Applies To

Trigger: The Commissioner of Building Control issues an MEI audit notice when a building’s Energy Use Intensity exceeds the prescribed threshold for its sub-typology for three consecutive years, and the building’s Gross Floor Area is 5,000 m² or more. Confirm the current requirement directly with MEI.

Covered typologies:

• Commercial buildings (offices, hotels, retail)
• Healthcare facilities (hospitals, polyclinics, nursing homes)
• Institutional buildings (educational, civic, community, and cultural)
• Sports and recreation centres

Explicitly excluded building types:

• Data centres
• Railway, airport, and port premises
• General and light industrial buildings
• Special industrial and utility buildings
• Religious buildings
• Residential buildings

Two important scope points:

• Green Mark certification does not exempt a building from MEI if its EUI exceeds the prescribed threshold.
• The Commissioner may withhold or cancel an audit notice if a building is scheduled for redevelopment or is undergoing a major retrofit.

When the regime first launched in Q3 2025, fewer than 100 buildings across Singapore were estimated to be subject to it, making receipt of a notice a notable compliance event requiring immediate action. For a broader picture of how compliance requirements intersect with property value, see how regulatory requirements can enhance tenant appeal.

How to Verify Credentials and Common Compliance Risks

Verifying a Specified Individual

No public registry of building-level MEI compliance status exists. To verify auditor credentials before appointment:

• BCA-registered Energy Auditors, a PDF list is published periodically at the BCA Energy Auditor Scheme page. The list is not real-time, so request the individual’s current e-certificate and check the expiry date before appointment. Registration is valid for 3 years; a certificate expiring mid-project creates a compliance gap.
• Professional Engineers (Mechanical), search the Professional Engineers Board Singapore registry and filter by the “Mechanical” branch. PE (Mechanical) registrants are not required to separately register with BCA as Energy Auditors.

Penalties for Non-Compliance

Failure to comply with MEI requirements is a statutory offence under the Building Control Act. Confirm the current penalty range directly with BCA. Offences include:

• Failure to engage a Specified Individual within the prescribed period
• Late EEIP submission (beyond the deadline, confirm with BCA)
• EEIP deviation without Commissioner of Building Control approval
• Failure to achieve or maintain the required EUI reduction
• Non-compliance with a written direction from the Commissioner

Continuing offences may be compounded. Confirm the current penalty range directly with BCA.

Common Compliance Risks

The regime launched in Q3 2025, and the first cohort is still progressing through the cycle, no official audit-failure statistics are published yet. Based on the regime’s design, the highest-risk points are:

• Late Specified Individual engagement, the procurement window is tight; many building owners underestimate time needed to scope, tender, and contract
• Audit scope underestimated, complex, multi-tenanted buildings frequently take longer to audit fully, pushing EEIP preparation past the deadline
• Confirm the current requirement directly with EEIP.
• Performance drift during the maintenance period, without continuous sub-metering and monitoring, a building can slip below target before the maintenance report is due
• Unauthorised EEIP deviations, changing measures without Commissioner approval is a standalone statutory offence

For guidance on how energy-related compliance fits within a broader renovation or fit-out project, the BCA and OHSAS compliance guide for Singapore commercial spaces covers the regulatory landscape for building works.

Frequently Asked Questions

What triggers an MEI audit notice for my building?

The Commissioner of Building Control issues an MEI audit notice when your building’s EUI exceeds the prescribed threshold for its sub-typology for three consecutive years, and your GFA is 5,000 m² or more. Confirm the current requirement directly with the relevant authority.

Who qualifies as a Specified Individual under the MEI regime?

A Specified Individual is either a BCA-registered Energy Auditor holding a current e-certificate valid for 3 years, or a Professional Engineer registered in the Mechanical branch with the Professional Engineers Board Singapore. PE (Mechanical) registrants do not need to separately register with BCA as Energy Auditors.

What happens if I miss the deadline to engage a Specified Individual?

Failure to engage a qualified professional within the prescribed period is a statutory offence under the Building Control Act, punishable by fines, confirm the current penalty range directly with BCA. The clock starts from the date the MEI audit notice is issued; verify any extension process with the Commissioner of Building Control.

Does holding BCA Green Mark certification exempt my building from MEI?

No, Green Mark and MEI are separate regimes with different triggers. A Green Mark-certified building can still receive an MEI audit notice if its EUI exceeds the prescribed threshold for three consecutive years.

How long must I maintain the 10% energy reduction after implementation?

You must sustain the required EUI reduction for one continuous year from the date you submit the certificate of completion, then submit a maintenance report within the prescribed period, confirm the exact deadline directly with BCA. If performance falls short during that period, the report must include supplemental EEIP measures.