rulemaking

In administrative law, rulemaking refers to the process that executive agencies use to create, or promulgate, regulations. In general,  legislatures first set broad policy mandates by passing laws, then agencies create more detailed regulations through rulemaking. By bringing detailed scientific expertise to bear on policy, the rulemaking process has powered the success of some of the most notable government achievements of the 20th century. For example, science-based regulations are critical to modern programs for environmental protection, food safety, and workplace safety. However, explosive growth in regulations has fueled criticism that the rulemaking process reduces the transparency and accountability of democratic government.
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The authority delegated to administrative agencies by Congress or State legislative bodies to make rules that have the force of law. Frequently, statutory laws that express broad terms of a policy are implemented more specifically by administrative rules, regulations, and practices. (DOE5)