Policy implementation comprises the rule-making phase of policy development. The legislative branch passes the law to the executive branch, which is charged with implementation. This includes adding specificity to the law and may also include, for example, defining “the health care provider” to include advanced practice nurses (provider-neutral terminology). The writing of rules after legislation is passed is a crucial and often overlooked aspect of policymaking (see Chapter 39 on Legislation and Regulation). At this juncture, nurses with appropriate expertise can monitor and influence how the rules are written. Once written, federal regulations are published in the daily Federal Register for 60 days to receive public comment. States have similar regulatory processes.