The Biden administration’s COVID-19 vaccine mandate for private businesses could be adjusted to remove the testing opt-out, according to the agency that crafted the requirement. The Department of Labor’s Occupational Safety and Health Administration (OSHA) unveiled the emergency temporary standard this week. It mandates employers with 100 or more workers to require proof of COVID-19 vaccination. Any worker who does not must get tested for COVID-19 on a regular basis, at least weekly. The standard took effect immediately but also serves as a proposed rule for a permanent standard, meaning that it may be altered. Tucked into the 490-page standard is a section about how the public can submit comments on the proposed language. In it, the agency makes clear that the testing opt-out could be removed. “Should OSHA impose a strict vaccination mandate (i.e., all employers required to implement mandatory vaccination policies as defined in this ETS) with no alternative compliance …