A public administrative agency that creates laws is said to be acting in a quasi-legislative capacity.
When an administrative agency carries out work that is not administrative-related and that acts to change the procedures that are followed in the administration, it is considered to be working in a quasi-legislative capacity.
Lawmakers are responsible for making administrative rules, and the administrative agencies are then tasked with implementing those rules. Usually, when a quasi-legislative agency wants to enact a change in law, it needs to hold a public meeting and take note of what the public thinks of the subject.