This a Holbrook by-law, adopted in 1994 for the protection of wetlands, related water resources, and adjoining land areas, and administered by the Holbrook Conservation Commission.

This is a Massachusetts state law, adopted in 1972 for the protection of wetlands and waterways, and administered by local Conservation Commissions.

These are the Wetlands Protection Act regulations, which were promulgated to support and provide detailed guidance on the administration of the law, for example by including definitions and performance standards for specific wetland resource areas.