Reduction of Irresponsible MRA Growth Act or TRIM Growth Act - Amends the House of Representatives Administrative Reform Technical Corrections Act to prohibit the Members' Representational Allowance for a fiscal year from exceeding the Allowance established for the previous fiscal year, unless: (1) the Bureau of Labor Statistics (BLS) publishes a national unemployment rate of 6% or lower for each of the six most recent months for which it published a national unemployment rate which occurred before the beginning of the fiscal year, or (2) the Secretary of the Treasury certifies to the congressional appropriations committees that the public debt does not exceed $5.5 trillion as of the first day of the last month of the previous fiscal year.