Coral Reef Conservation Amendments Act of 2005

Requires the Administrator, when possible, to partner with other specified federal agencies and to leverage their resources for such purposes.

(Sec. 4) Authorizes, under the national program to conserve coral reefs and coral ecosystems, any activities designed to minimize the likelihood of vessel impacts or other physical damage to coral reefs, including activities to identify certain at-risk coral reefs.

(Sec. 5) Directs the Administrator to report triennially to Congress on all activities undertaken to implement the national coral reef action strategy, including: (1) a description of funds obligated by each participating federal agency to advance coral reef conservation; (2) a description of federal interagency and cooperative efforts with states and U.S. territories to prevent overharvesting, coastal runoff, or other anthropogenic impacts on coral reefs; (3) a summary of the information contained in the vessel grounding inventory, including additional funding, needed for response and removal of such vessels; (4) a description of federal disaster response actions taken under the National Response Plan to address damage to coral reefs and coral reef ecosystems; and (5) an assessment of the condition of U.S. coral reefs, accomplishments under this Act, and the effectiveness of management actions to address threats to coral reefs.

(Sec. 6) Requires a nonprofit organization that receives project funds from the Coral Reef Conservation Fund to use them to address emergency response actions to prevent or minimize the destruction or loss of, or injury to, coral reefs or coral ecosystems from vessel impacts or other physical damage to coral reefs. Urges such organizations to solicit funding and in-kind services from the private sector (including nongovernmental organizations).

Authorizes the Administrator to make community-based planning grants to certain entities to work with local communities and appropriate federal and state entities to implement plans for increased protection of high priority coral reefs.

Authorizes the Administrator to: (1) maintain an inventory of all vessel grounding accidents involving coral reef resources; and (2) identify certain at-risk coral reefs that have a high incidence of vessel impacts, including appropriate measures to reduce such impacts.

Directs the Administrator to work in coordination with other federal agencies, states, and U.S. territorial governments to implement the national coral reef action strategies (including regional and local strategies) to address multiple threats to coral reefs and coral reef ecosystems such as coastal runoff, vessel impacts, and overharvesting.

(Sec. 7) Reauthorizes the Coral Reef Conservation Act of 2000 and authorizes appropriations through FY2012 for: (1) the coral reef conservation program; and (2) community-based planning grants.