H.R.3644 - Federal Government - To establish a nonpartisan Commission on Natural Catastrophe Risk Management and Insurance, and for other purposes.

Commission on Natural Catastrophe Risk Management and Insurance Act of 2007 - Establishes the Commission on Natural Catastrophe Risk Management and Insurance to report to Congress on the natural catastrophe insurance marketplace, including: (1) the extent to which insurance costs and availability are affected by specified factors; (2) which factors the federal government should address to increase catastrophe insurance availability and competitiveness; and (3) actions the federal government can undertake to achieve this goal without requiring a long-term cross-subsidy from taxpayers.

Requires the Commission to report to certain congressional committees before the beginning of the 2008 hurricane season.