Postage stamps and postal history of Nigeria the British Commonwealth and a new definitive set was issued on 1 November 1965. Between 1960 and 1961 Nigerian definitives of 1953-57 were overprinted "CAMEROONS/U.K.T.T." for use in Southern Cameroons of the British Mandate territory of British Cameroons. This issue was also valid for use in Northern Cameroons until it joined Nigeria. In 1961, Southern Cameroons became part of Cameroon. Between 30 May 1967 and 15 January 1970, the region of Biafra attempted to secede from Nigeria and issued their own postage stamps. Eventually, after a bloody civil war they rejoined Nigeria. Postage stamps and postal history of Nigeria This
Council for the Regulation of Engineering in Nigeria to a specified mail address. This also involves paying some fee and uploading some document to the body's website. COREN membership is required to practice engineering independently, is a requirement for some engineering firms, and is mandatory for government contracts. Council for the Regulation of Engineering in Nigeria Council for the Regulation of Engineering in Nigeria (COREN) formerly Council for the Registration of Engineers in Nigeria, is an engineering regulatory body that regulates the practice of engineering in Nigeria. It was established by decree 55 of 1970 and amended by Decree 27 of 1992, now the “Engineers (Registration, etc) Act,