On behalf of Tyson Tampa Apts LLC and associated permit BLD-23-0499203 we are requesting that ASHRAE 15-2022 be substituted for Chapter 11 of the 2020 Florida Mechanical Code (FMC). ASHRAE 15-2022 and Chapter 11 both govern the allowable usage of refrigerants. However, Chapter 11 of the FMC typically follows and makes revisions based on published information from the previous version of the ASHRAE 15 standard.