That all depends on what you propose to do and how close you are to a wetland. A Request for Determination of Applicability (RFD or RDA) is used for small projects where the applicant requests that the Commission determine if the Wetlands Protection Act/Rockport Wetlands By-law is applicable to the area and/or the activity proposed.
Simple projects with proper protective measures (siltation barriers) will have little if any impact on a wetland resource area and are typically taken care of using a RDA.
A Notice of Intent (NOI) is used for larger projects (septic system repairs, house construction, activities within wetlands, etc.) where the likelihood of impacting the wetland is greater. An NOI is more detailed than an RDA and involves one or more public hearings.
An Abbreviated Notice of Resource Delineation (ANRAD) is used to confirm a wetland boundary which, in turn, establishes the Commission's jurisdiction.
Still not sure which application to use? Contact the Conservation Office: