Under new rules, residential construction employers must:

• Provide a guardrail, safety net, or personal fall system whenever employees may fall more than 6 feet

• Use approved alternative methods of fall protection (e.g. Slideguards, safety monitoring systems) Only after
  a qualified person has developed a site-specific written plan:
  (1) Showing that conventional systems are infeasible or more
  hazardous; and (2) listing the alternative methods that will be used

• Certify
  that each employee who may be exposed to a fall hazard has been trained
  by a qualified person to recognize and avoid such hazards