Primary entities affected would be the National Estuary Program (NEP) and the organizations and governments that participate in it. If the replaced text alters definitions, eligibility, authorized activities, or allocation mechanisms, the following could be affected:

• NEP management conferences, local estuary partnerships, and nonprofit partners: may see changes to who can apply for grants, eligible project types, or program priorities.
• EPA (Office managing NEP): may need to update guidance, grant solicitations, and reporting templates; may need to undertake rulemaking or issue interpretive guidance to implement statutory changes.
• State and local governments and Tribal governments involved in estuary work: potential changes to their roles, match requirements, or responsibilities depending on the replacement language.
• Coastal shoreline communities and stakeholders (businesses, residents, conservation groups): potential downstream effects on restoration, habitat protection, water quality projects, and local planning if grant eligibility or priorities shift.

Because the replacement text and any funding instructions are not provided, the magnitude and direction of impacts (expansion, restriction, or technical clarification) cannot be determined. If the new language merely clarifies existing authorities, impacts may be limited; if it changes eligibility, funding formulas, or adds new mandates, administrative and programmatic effects could be significant and would likely require EPA updates and potentially additional state/local planning and budgeting.