Regulations to provide for a mandatory certification programme and other measures to prevent spreading and to fight the Citrus Tristeza Virus and other plant diseases affecting citrus trees. The Belize Agricultural Health Authority shall be the principal certifying agency and delegates its powers to the Citrus Control Board established under the Citrus (Processing and Production) Act. Every owner of a nursery in Belize intending to produce citrus trees shall register that nursery with the Board