Constitution of Nigeria. Country/Territory Nigeria Document type Constitution Date 1999 Source FAO, FAOLEX Subject Agricultural & rural development, Environment gen., Food & nutrition, Land & soil, Water Keyword Basic legislation Traditional rights/customary rights Public participation Sustainable development Codified constitution Agricultural development Policy/planning Governance Property rights Environmental security Food quality control/food safety Right to food Food security Human rights Land tenure Expropriation Sustainable use Geographical area Africa, Western Africa Full text English Website www.constituteproject.org