“Rule” means a policy, guideline, restriction, procedure, or regulation of an association, however denominated, which is not set forth in the declaration or bylaws.

EXAMPLE:
No on-street parking is a restriction that runs with the land, a covenant, when included in the association’s Declaration of Covenants, Conditions and Restrictions or the Bylaws.

The “rule” would be adopted by the association’s Board of Directors not set forth in the declaration or bylaws permitting short-term on-street parking,  e.g. emergencies, deliveries, and/or special event(s).