BIR Revenue Regulations No. 10 – 2019 February 6, 2020 By Management BIR Revenue Regulations No. 10 – 2019 Amending Pertinent Provision of Revenue Regulations (RR) No. 4-2000, as Amended by RR No. 7-20005, By Providing a New Format for the Notice to the Public to be Exhibited at Place of Business