Primacy agencies are the entities that regulate drinking water systems. Primacy agencies and states can use the following information to assist in public notice (PN) compliance.

State implementation guidance

This guidance document contains information that will aid states in implementing the rule and applying for primacy.

• Revised State Implementation Guidance for the Public Notification (PN) Rule (PDF)(181 pp, 2 MB, About PDF) EPA 816-R-09-012, March 2010
• Public Notification Compliance Help for Primacy Agencies Additional Documents

For more information, please see the Public Notification Rule page.