ECHA RAC Recommends TFA Classification — But Hazard, Risk, and Environmental Fate Are Separate Questions

On 6 October 2026, ECHA published the final RAC opinion, adopted in June 2026, recommending classification of trifluoroacetic acid (TFA) and its inorganic salts. The recommendation addresses intrinsic hazard properties; it is not a legal ban on any HFO refrigerant.

What the RAC opinion covers

The committee recommends classification for reproductive toxicity, persistence, and mobility. Category 1B is proposed for developmental effects, and category 2 for effects on sexual function and fertility.

BfR: hazard classification is not a risk assessment

The German Federal Institute for Risk Assessment (BfR) stresses that hazard classification and risk assessment at a particular exposure level are distinct questions. BfR reports that data are insufficient for a robust overall assessment of TFA in food. On the basis of currently available data, the institute does not expect health effects at the concentrations known in food and drinking water. BfR adds that this is not a guarantee for every exposure scenario or for future findings.

UBA on environmental sources and natural refrigerants

The German Federal Environment Agency (UBA) identifies atmospheric degradation of some fluorinated gases as one source of persistent TFA entering the environment. UBA clarifies that this statement does not apply equally to all refrigerants. The agency also notes that natural refrigerants carry application-specific hazards — ammonia toxicity, hydrocarbon flammability, and the high operating pressures of CO2 — and should not be labelled universally safe.

Sources: ECHA RAC opinion announcement, BfR risk-assessment FAQ, UBA on degradation products.