 On 30 June 1987, the President of the Philippines Corazon Aquino at that time, started Executive Order No. 206. This order changed Section 105 (f) and added a new subsection (f-1) to Republic Act No. 1937, which some people also know as the Tariff and Customs Code of the Philippines, which became law on 22 July 1957 by former president Carlos P. Garcia. 