} To assure that you are using the correct information and guidance, please consult OSHA's website at http://www.osha.gov. var size=12; Presently, no OSHA standard to regulate extended and unusual shifts in the workplace exists. Standards. The worker must get a follow-up examination by a health professional when an employer is unsure if the worker is fit for night work. The Occupational Safety and Health Association (OSHA) states that “workers generally will not acclimate to night work, and sleep patterns will generally be disrupted so the non-work periods do not provide full recovery, resulting in sleep deprivation.” var usasearch_config = { siteHandle:"usdoloshapublicwebsite" }; Practice good housekeeping due to poor natural light. An employer may only require or permit an employee to perform night work, if so agreed, and if— (a.) //