H.R.3453: To amend title XVIII of the Social Security Act to repeal the Medicare competitive bidding demonstration project for clinical laboratory services.

Community Clinical Laboratory Fairness in Competition Act of 2007 - Amends title XVIII (Medicare) of the Social Security Act to repeal the mandate for a Medicare Competitive Bidding Demonstration Project for Clinical Laboratory Services.

Amends federal civil service to subject the Centers for Medicare & Medicaid Services of the Department of Health and Human Services (solely with respect to its capacity to issue rules governing the Medicare part B fee schedule for clinical laboratory services) to the requirement to submit to a small business advocacy review panel for comment any proposed rule which will have a significant economic impact on a substantial number of small entities.