In an effort to reduce fatalities in the residential construction workplace, in 2010, the OSHA made significant changes to their fall protection guidelines. For residential roofing jobs that call for a worker to be higher than 6 feet in the air, they are required to be protected by the use of guard-rail systems, safety net systems, or personal fall arrest systems. If an employer can prove that these systems create a greater hazard for the worker, then the employer will be required to implement a fall protection plan. All fall protection plans must be prepared and approved by a qualified person and also re-approved by a qualified person if anything in the protection plan changes. When working in aerial lift or boom-type platforms, including scissor lifts and bucket trucks, the worker must either have a guardrail system in place (where applicable) or be tied off. The acceptable methods for tie-offs are explained below.