The present Regulation lays down provisions relating to the marketing of eggs. It contains at the outset a definition clause relating to various terms employed therein such as “chicks-for-placement”, “chicks-for-placement contractor”, “eggs”, “fowl”, “hatching eggs”, “local board”, “producer”. Section 4 lists the powers that the Commission delegates to the local board, for example, to require persons engaged in producing or marketing chicks-for-placement, eggs, hatching eggs or fowl to register