Montreal Protocol has come into light in 1987 and it is ratified by 197 countries. Bangladesh has ratified the Montreal Protocol and subsequently ratified all its amendments such as Vienna Convention in 1990,
London Amendment in 1994, Copenhagen Amendment in 2000, Montreal Amendment in 2001, and Beijing Amendment in 2010 and the Kigali Amendment is signed in 2016 and the ratification is under process. Bangladesh approved its country program on Ozone Depleting Substances (ODS) phase-out in 1994. In connection with the phase out schedule from the beginning, Bangladesh phased out Halon from Service & Civil Defense in 1995, Methyl bromide (MB) from Agriculture in 1996, Methyl chloroform (MCL) from Agriculture in 2001, Chlorofluorocarbon (CFC) from Aerosol in 2003 and CFC from RAC in 2010, Carbon tetrachloride (CTC) from Solvent in 2010 and HCFC-141b from Foam in 2013.