New guidance released by the White House on Monday suggests that federal contractors will have significant leeway in enforcing President Joe Biden’s COVID-19 vaccine mandate. Federal contractors such as Boeing, Lockheed Martin, United Airlines, IBM, UPS, and many more employ a significant number of Americans. The new guidance, released on the Safer Federal Workforce website, provides flexibility for those companies to determine how to enforce the mandate. “A covered contractor should determine the appropriate means of enforcement with respect to its employee at a covered contractor workplace who refuses to be vaccinated and has not been provided, or does not have a pending request for, an accommodation,” according to the guidelines. On Sept. 9, Biden announced mandates for federal workers, federal contractors, and most health care staff. Those mandates differ from the forthcoming mandate for businesses with 100 or more employees stipulating that workers either get the vaccine or submit …