F-gas Regulation 2024/573: what changes for refrigeration installers

The f-gas regulation 2024/573 has applied across the EU since 11 March 2024 and reshapes what refrigeration installers, HVAC contractors, and site operators need to do on the shop floor. The regulation replaces the earlier 517/2014, drops the 2030 HFC quota to well under a quarter of what the old schedule promised, tightens Annex IV product bans across split ACs, heat pumps and chillers, and introduces a unified A1 to E certification scheme that begins on 29 March 2026. For operators of stationary equipment above 5 t CO2eq of charge, the record-keeping obligations under Article 7 stay in force and become harder to fulfil with paper alone.

This guide walks through the f-gas regulation 2024/573 at installer altitude: which equipment classes Annex IV bans and when, why the HFC quota lands at 5.2 percent of the 2015 baseline in 2030 and zero in 2050, how the new certificate scheme replaces the old F-gas categories, and how a Modbus-fed monitoring system produces the audit trail Article 5 leak checks and Article 7 records need. The frame of reference is EU installers and international readers; the UK diverges post-Brexit and needs Defra guidance for local specifics.

Key takeaways

• Regulation (EU) 2024/573 entered into force on 11 March 2024, replacing 517/2014 (source: EUR-Lex CELEX 32024R0573).
• HFC quota falls to 5.2 percent of the 2015 baseline by 2030 versus 21 percent under 517/2014, and to zero by 2050 (source: Umweltbundesamt).
• Annex IV imposes staged GWP ceilings per equipment class: max GWP 150 from 2027 for air-to-water splits up to 12 kW and plug-in heat pumps up to 50 kW, and a full F-gas ban from 2032 for plug-in heat pumps up to 12 kW.
• New EU-wide certificate scheme A1, A2, B, C, D, E takes effect 29 March 2026; existing certificate holders must complete re-certification by 12 March 2029 (source: BFS Kälte-Klima Merkblatt).
• Free allowance for HFC in pre-charged equipment cut from 100 t CO2eq to 10 t CO2eq; producer rights set at 60 percent of 2011-2013 average from 2025 and fall to 15 percent by 2036 (source: European Commission Climate Action).
• Modbus monitoring provides the continuous pressure and temperature record that Article 5 leak checks and Article 7 record-keeping need, without adding shop-floor paperwork.

What is the f-gas regulation 2024/573?

The f-gas regulation 2024/573 is the European regulation on fluorinated greenhouse gases adopted by the European Parliament and Council on 7 February 2024. It sets rules on containment, use, recovery, recycling, reclamation and destruction of fluorinated greenhouse gases in the EU, and it replaces the previous Regulation (EU) 517/2014 (source: EUR-Lex). The core changes concern the HFC phase-down speed, the Annex IV product bans, and the unified professional certification scheme.

For EU operators the regulation applies directly. National transposition varies: Germany updates its ChemKlimaSchutzV via the federal states, the Netherlands enforces through ILT and the STEK schema (BRL 100 v3.0 published in December 2025, effective 31 August 2026 with a 24-month transition), Belgium and France map through their own domestic ordinances. The F-Gas Portal run by the European Commission registers all market participants and issues import and export licences irrespective of quantity.

Three headline changes vs 517/2014

The f-gas regulation 2024/573 pulls three levers in parallel: a steeper HFC quota schedule, an expanded product ban list in Annex IV, and a new EU-wide certification scheme that retires the old F-gas categories.

1. HFC quota acceleration

Under 517/2014 the HFC market supply would have declined to 21 percent of the 2015 baseline by 2030 and then plateaued. The 2024/573 quota schedule pushes that line further: 5.2 percent by 2030 and zero by 2050. Producer rights from 2025 equal 60 percent of the 2011 to 2013 average and fall to 15 percent by 2036 (source: European Commission).

2. Annex IV expansion

Annex IV lists product bans by equipment category, date, and maximum GWP. It now includes both progressive GWP reductions (from 750 to 150 for splits below 12 kW) and complete F-gas bans in small classes: plug-in heat pumps up to 12 kW from 2032, splits up to 12 kW from 2035.

3. Certification harmonised

The old F-gas category system (F-gas Cat 1 to 4 plus separate ACB B1 for hydrocarbons) sunsets. A new scheme A1, A2, B, C, D and E covers synthetic and natural refrigerants (hydrocarbons, CO2, ammonia) in one framework and is valid EU-wide. Each certificate is valid for 7 years; existing holders must complete re-certification by 12 March 2029 (source: BFS Kälte-Klima Merkblatt).

Annex IV deadlines by equipment class

Annex IV of 2024/573 sets a distinct deadline and GWP threshold per equipment class. The visual below shows which classes hit which threshold in which year. Orange and yellow markers denote GWP ceilings; red markers denote outright F-gas bans.

Commercial refrigeration outside chillers moves to a common max GWP 150 ceiling from 2030. Servicing with virgin HFC of GWP >= 2500 has been banned in existing systems since 1 January 2025 and drops to a full ban in 2030. Only recycled or reclaimed refrigerant is permitted from then on.

HFC quota schedule 2024 to 2050

The single largest shift under the f-gas regulation 2024/573 is the pace of the quota line. Under 517/2014 the market supply would have plateaued at 21 percent of the 2015 baseline in 2030. Under 2024/573 the line is steeper and terminates HFC production and import in the EU altogether by 2050.

The practical consequence for installers: new R32, R134a and R410A cylinders become scarcer and pricier between 2025 and 2030, and after 2036 they narrow to recycled supply only. Expect annual refrigerant price increases while supply contracts, plus per-customer allocation limits from wholesalers. That sharpens the business case for R290 (propane, GWP 3), R744 (CO2, GWP 1) and R454B (GWP 466) in new installations.

New certification scheme A1 to E

The old F-gas category system (Cat 1 to 4, plus separate hydrocarbon qualifications) is being phased out. The new A1, A2, B, C, D, E scheme covers synthetic and natural refrigerants in one framework and is valid across the EU.

1. 1

   29 September 2025

   Certification obligation for work with natural refrigerants (hydrocarbons, CO2, ammonia) takes effect. Existing F-gas certificates remain valid under prior conditions.

2. 2

   29 March 2026

   New EU-wide scheme A1, A2, B, C, D, E launches. Standalone F-gas certificates and hydrocarbon qualifications stop being issued.

3. 3

   1 July 2026

   Last regular exam preparation windows for CO2 and ammonia at national training bodies.

4. 4

   31 March (yearly)

   Business Data Repository (BDR) filing for all quota-relevant quantities from the prior year.

5. 5

   30 April (yearly)

   Independent auditor's report for holdings above 1000 t CO2eq HFC.

6. 6

   12 March 2029

   Deadline for existing certificate holders to complete re-certification. New certificates valid for 7 years.

For contractor businesses the practical steps are the same across the EU: map which technicians hold which legacy qualification, book exam slots well before 2028 (capacity tightens in 2027 and 2028), and decide which A or B category matches your service scope. Contractors already working with R290 or CO2 gain a head start on the natural-refrigerant categories.

Leak checks and record-keeping under Articles 5 and 7

Article 5 sets leak-check obligations and their frequency. The floor is 5 t CO2eq of contained charge; intervals shorten as charge grows. Above 500 t CO2eq an automatic leak-detection system is mandatory, and it doubles every regular interval.

Annex III harmonises what an operator's record must contain per system: refrigerant type and quantity, additions and removals in kg, leak-check results with date and technician, and the certificate reference of the person performing the work. Digital records are permitted as long as the competent authority can access them on-site at any time. The f-gas digital logbook article covers the recording detail.

How Modbus monitoring evidences compliance

The f-gas regulation 2024/573 asks for traceable numbers on pressures, temperatures, and refrigerant movement per system. Manual six-monthly rounds remain legally valid but capture data with delay and miss early leak indicators that a monitoring system spots live. R410A hits the 5 t CO2eq threshold at just 2.4 kg of charge, while R290 does not cross it until 1667 kg. The refrigerant choice therefore decides directly which sites fall under the record-keeping and inspection obligation.

A Modbus-fed monitoring stack such as Modbus automated alerts setup reads pressure and temperature registers from your controller (Danfoss AK-SM 850A, Carel pRACK, Siemens Climatix) over the existing RS485 or TCP network and streams the data to a central service. For the digital logbook this means every pressure deviation produces a timestamped record automatically. For compliance audits you can show a service history in two clicks that lines up exactly with the raw sensor data. For Annex IV planning you see per site which systems run on which refrigerant, so retrofit priority follows the data rather than guesswork.

The refrigeration monitoring and F-gas compliance pillar article documents which registers to read from common refrigeration controllers (suction pressure, discharge pressure, superheat, alarm code) and how to map them into the standard logbook schema.

What to do this quarter

Four concrete steps for EU refrigeration contractors over the next 90 days:

1. Inventory your installed base by refrigerant and equipment class. Do you know, per site, which systems run R410A, R32, R134a or R404A, and which Annex IV class they belong to? If not, a half day of spreadsheet work buys the next 12 months of clarity.
2. Map certificate holdings to the A1 to E scheme. Which technician holds which legacy F-gas category, and which new A or B category fits your service portfolio? Exam capacity tightens through 2027 and 2028, so book early.
3. Digitise the logbook. Contractors still using Excel or paper will hit the 12 March 2029 re-certification deadline uncomfortably. A Modbus-fed logbook is a small integration if your controllers already speak TCP or RS485.
4. Run the R290 vs R32 business case on new work. Every R32 project handed over after 2027 sits on top of the max GWP 150 line. A project manager who specifies R32 today for a 12 kW air-to-water split carries a product-ban risk within the warranty period.

For EU refrigeration contractors and site operators, Modbus monitoring becomes the practical evidence layer: it provides the data stream that fills the digital logbook automatically, gives early leak indicators via pressure trend analysis, and produces the audit trail that turns a compliance inspection into a two-click review of the servicing history. Combined with a per-site retrofit plan the 12 March 2029 re-certification deadline stops feeling like a cliff.