Volatile organic compounds ( VOC for short) is the collective term for organic, i.e. carbon-containing substances, which change into the gas phase at room temperature or higher temperatures through evaporation (colloquially “evaporation”), i.e. are volatile.
The regulation has been in force since 2012 and includes the introduction of emission classes (A+, B, C and D) based on limit values for volatile organic compounds and aldehydes, after an incubation period of 28 days.
When introducing products onto the French market that fall under these regulations, there is an obligation to label the emission class.
More at:
https://www.eurofins.com/media/1577/french-voc-regulations-ch-en.pdf