The House from time to time will refuse to consider a Senate-originated tax bill because the Origination Clause of the Constitution provides that all revenue measures must begin in the House. The act of rejecting a Senate tax bill is often referred to as sending a “blue slip,” a reference to the color of paper used for communications between the two chambers. The Senate can, of course, amend tax bills that were originated in the other chamber, but tax measures almost always have HR bill numbers to satisfy the constitutional requirement. Click here for CRS Report.
Terri Henderson, 6, center, whose mother is El Salvador, attends a rally with members of Congress at Union Station's Columbus Circle to announce the Restore Opportunity, Strengthen, and Improve the Economy (ROSIE) Act on July 29, 2014. The legislation provides incentives for government contractors to pay a living wage and other benefits that would help low-income workers.