These Regulations apply in relation to seed produced in England under a temporary experiment, the purpose of which is to seek alternatives, which may be more suitable for use under particular conditions, to seed of cereal species which conform to varietal requirements. The experiment is to run for a period of 7 years beginning with the date that these Regulations come into force. Licences issued under regulation 21A of the Seed Marketing Regulations 2011 (“the 2011 Regulations”) (S.I. 2011/463) exempt participants in the experiment from compliance with specified provisions of the 2011 Regulations. Regulation 21A of those Regulations permits this where the experiment is organised in accordance with regulations made under section 16(5) of the Plant Varieties and Seeds Act 1964 (c. 14) (“the 1964 Act”). These Regulations allow the production and marketing of limited quantities of heterogeneous material (seed with diverse genetic characteristics derived from several varieties and produced through repeated sowings).