Those costs are enough to trigger a federal law that would require the to analyze more thoroughly the effect of its proposal, said , a consultant hired by the chamber to do the study. It was made available to The Associated Press on Thursday.
The department's proposed "no match" rule would require employers to fire workers who can't resolve mismatches between their name and Social Security number. The chamber opposes the proposal.
Belzer's study will be among public comments submitted to the Homeland Security Department on the proposal. The department could adopt the proposal after reviewing the comments. The deadline for comments is Friday.
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