Not directly, but the rules are closing in. Singapore’s National Environment Agency (NEA) announced in May 2026 that new supermarket-type commercial refrigeration systems must use refrigerants with a global warming potential (GWP) of 150 or below from 1 July 2027, and that centralised commercial and industrial systems, including cold rooms, will come under mandatory refrigerant recovery and registration requirements from the same date. A cold room you build today is not banned from using an HFC such as R404A, but it will be serviced under the new regime for its entire life.
If you are planning a new cold room, an expansion or a major refit, this changes what you should ask your contractor before signing.
What NEA actually announced
Singapore already restricts high-GWP refrigerants in some equipment. Since October 2022, limits have applied to household air-conditioners, household refrigerators and water-cooled chillers used for building cooling. The 2026 announcement extends the approach in two steps, as reported by the International Institute of Refrigeration and Singapore law firm Shook Lin & Bok:
- From 1 July 2027: new commercial refrigeration systems of the type used in supermarkets, such as multipack compressor racks and semi-plug-in water-loop systems, must use refrigerants with a GWP of 150 or below.
- From 1 July 2028: new passenger cars and light goods vehicles with air-conditioning must meet the same GWP 150 limit.
- From 1 July 2027: businesses handling centralised commercial and industrial refrigeration systems, described in the legal commentary as including cold rooms and custom-built non-packaged systems, must register with NEA and follow mandatory refrigerant recovery and disposal procedures.
The limits apply to newly installed systems. Existing equipment can keep running until the end of its life. For reference, R404A has a GWP of roughly 3,900, so it is far above the 150 line, while natural refrigerants such as R290 (propane) sit at about 3.
Does the GWP 150 limit apply to a standard cold room?
Based on the published summaries, the numerical GWP 150 limit is aimed at supermarket-type commercial refrigeration, not at every custom-built cold room. Cold rooms are mentioned in the recovery and registration framework rather than given their own GWP ceiling. That said, three practical points matter for buyers.
First, the direction of travel is clear. Singapore has moved from household equipment (2022) to supermarkets and vehicles (2027-2028). Industrial and commercial cold storage is the obvious next category, and a compressor and refrigerant chosen today may need to be recovered, replaced or retrofitted within its working life.
Second, refrigerant supply follows regulation. As high-GWP refrigerants are phased down globally under the Kigali Amendment, prices for R404A and similar gases tend to rise and availability tightens. A system that depends on them carries a growing top-up and repair cost risk.
Third, servicing will be more formal. Recovery and disposal rules mean whoever decommissions or opens up your refrigeration circuit needs to follow documented procedures. Confirm that your maintenance contractor understands the registration requirements and can show you how refrigerant will be recovered.
What to ask your contractor before you buy
For a new installation or expansion, put these questions in writing when comparing quotes:
- Which refrigerant is quoted, and what is its GWP? Ask whether lower-GWP options such as R290 (for small self-contained units) or R744 (CO2) are viable for your load and room size.
- Is the equipment rated and certified for that refrigerant? Flammable refrigerants such as R290 carry charge-size limits and safety design requirements.
- What is the leak-tightness plan? Brazed joints, pressure testing and leak detection reduce both emissions and running costs.
- Who recovers the refrigerant at end of life, and are they compliant with NEA’s recovery and disposal rules?
- Is the contractor properly registered? A BCA-registered contractor with refrigeration competence is the baseline for any new build.
If your existing cold room runs on R404A or R507 and is in good condition, there is no need to panic. Focus on leak prevention, keep service records up to date, and plan the refrigerant question into your next compressor or condensing unit replacement rather than treating it as a separate expense.
Frequently asked questions
Will I have to replace my existing cold room refrigeration system in 2027?
No. NEA’s GWP 150 requirement applies to newly installed supermarket-type systems from 1 July 2027, and existing equipment can generally continue operating until end of life. The recovery and registration rules do apply to those handling the equipment.
What is a refrigerant’s GWP and why does 150 matter?
GWP measures how much heat a gas traps compared with carbon dioxide over a set period. A GWP of 150 means the gas traps 150 times as much heat as CO2. Common HFC blends such as R404A are in the thousands, so a 150 limit effectively pushes new systems towards natural and low-GWP refrigerants.
Is R290 allowed in a commercial cold room in Singapore?
R290 has a very low GWP, so it fits the direction of the rules, but it is flammable and is normally limited to small, self-contained systems with strict charge limits and safety design. Whether it suits your room depends on size, load and site conditions, so it should be assessed by a qualified contractor.
Should I choose a low-GWP system for a cold room I am building now?
If a suitable low-GWP option exists for your capacity and budget, it is usually the safer long-term choice because it reduces exposure to rising HFC prices and future regulation. If not, insist on a leak-tight design and a documented recovery plan.
Sources: NEA announcement of 28 May 2026 as reported by The Independent Singapore; International Institute of Refrigeration (iifiir.org), 24 June 2026; Shook Lin & Bok LLP commentary on the new refrigerant rules. Regulations may be updated, so check NEA’s website for the current requirements.