President Biden's vaccine mandate, requiring companies with 100 employees or more to staff vaccinated employees, will be enforced by OSHA starting January 4.
Companies that willingly defy the mandate could face hundreds of thousands of dollars in fines.
Employers with more than 100 employees must ensure that all their workers are either fully vaccinated or subject to weekly testing while wearing masks.
OSHA officials say they will assist employers with testing standards.
The Federal governments considers a person fully vaccinated if they have received two doses of Moderna or Pfizer shots, or one dose of Johnson & Johnson's shot.
It's not clear what, if anything, will be required of vaccinated individuals needing a booster shot. What also isn't clear is what happens when vaccination immunity is no longer effective. It also doesn't appear natural immunity is being taken into consideration.
The mandate has faced pushback from companies and some lawmakers who warn that the new rule could serve to further hinder the nation's struggling supply chain just as the busy holiday season goes into high gear.
More importantly, many lawmakers argue vaccine and mask mandates violate the constitution rights of citizens.
When it comes to the construction industry, the delivery time of machine parts is likely to get even longer as crates continue to sit on cargo ships.
Republicans are expected to file lawsuits ahead of the January 4 mandate.
The Biden Administration says 70% of all U.S. adults are fully vaccinated.
