Primary and secondary legislation

Primary legislation and secondary legislation (the latter also called delegated legislation or subordinate legislation) are two forms of law, created respectively by the legislative and executive branches of governments in representative democracies. Primary legislation generally consists of statutes, also known as "acts", that set out broad principles and rules, but may delegate specific authority to an executive branch to make more specific laws under the aegis of the principal act.

Source: Wikipedia — Primary and secondary legislation (CC BY-SA 4.0)