By Elise Viebeck - 02/28/13 06:04 PM EST
The employer mandate requires that companies of 50 or more workers provide health insurance or pay fines if more than 30 employees receive government assistance to buy coverage.
The health offerings must be affordable, and they must include a variety of "essential health benefits."
Since 2010, several major firms have threatened to cut employee hours over the requirement. Some, like the company that runs Olive Garden and Red Lobster, backtracked after intense criticism.
The Internal Revenue Service has already started to implement the rule in anticipation of next year, when penalties will begin.
Thursday's bill came from Hatch; Senate Health, Education, Labor and Pensions Committee Ranking Member Lamar AlexanderLamar AlexanderGOP senators to donors: Stick with us regardless of Trump Overnight Healthcare: Mysterious new Zika case | Mental health bill in doubt | Teletraining to fight opioids Hopes dim for mental health deal MORE (R-Tenn.); and Reps. Charles BoustanyCharles BoustanyDavid Duke will bank on racial tensions in Louisiana Senate bid Boeing tells lawmakers sale of planes to Iran well-known part of nuclear agreement The Trail 2016: Post-Orlando maneuvers MORE (R-La.), Pat Tiberi (R-Ohio) and John BarrowJohn BarrowDem files Ethics complaint on Benghazi panel Barrow thanks staff in farewell speech The best and the worst of the midterms MORE (D-Ga.).