REVENUE MEMORANDUM CIRCULAR NO. 100-2021 issued on September 14, 2021 amends RMC Nos. 55-2014, 66-2014 and 78-2014 to transfer the issuance of the required certification that the livestock or poultry feeds or ingredients used in the manufacture of finished feeds are unfit for human consumption, from the Food and Drug Administration to the Bureau of Animal Industry.