Philippines extends seafarer STCW certificate validity by a year due to Covid-19 2 September 2020 The Philippines has extended the validity of seafarers’ STCW certificates that are due to expire by another year.Author: Capt. Johnhttps://www.seatrade-maritime.com/ship-operations/philippines-extends-seafarer-stcw-certificate-validity-year-due-covid-19