OSHA 1926.51: Do weekend security guards count toward the headcount?
Weekend security guards count toward your OSHA 1926.51 headcount. The standard applies to any employee present at the site, including non-construction personnel like security. For two guards over a weekend, you need at least one toilet available.
OSHA's rule for small crews
OSHA 1926.51(c) requires one toilet for 20 or fewer employees. Your weekend crew is two people, so one standard portable toilet meets the minimum. There is no exemption for weekends or security roles.
Practical site setup
Leave the unit you use during the week in place. A standard unit on level ground with clear truck access for Monday service works. No need for a deluxe or ADA unit for two people unless one guard uses a wheelchair.
Service and security
Schedule your regular weekly service for Monday morning. The guards will use it lightly, so it won't overfill. Lock the unit if vandalism is a concern in your area.
Anybody run into pushback from a GC or security company on this?