Thank you very much, Mr. Carreau, for a very thoughtful answer.
I have quick follow-up.
I think you mentioned a subgroup of PFAS substances that are known substitutes for the Kigali substances. The government has expressed its concern about regrettable substitutions, which is a valid concern for sure.
I'm told that certain industry players are concerned about a possible need to find a substitute for a substitute after millions of dollars in investment. Can you explain to the committee what the process to find viable alternatives entails and what regulatory markers or exemptions the government will consider as we work to find the lowest impact alternative for an undesirable chemistry?