OSHA and ANSI standards require that roof anchorage systems and fall protection measures meet specific criteria to ensure worker safety.

Anchorage is defined as a secure point of attachment for lifelines, lanyards, or deceleration devices. [5]

Key requirements include:

• Strength: Anchor points must be capable of supporting a minimum load. For instance, a single point of anchorage should have a breaking strength of at least 18 kN, or be designed and installed per an engineer's plan compliant with CSA Standard Z259.16. [3]

• For temporary fall arrest systems, anchors must have an ultimate load capacity of at least 22 kN (5,000 lbs) or two times the maximum arrest force. [6]

• System Design: Flexible continuous anchorage systems (horizontal lifelines) must adhere to minimum standards, including a steel cable of at least 12 mm diameter, a maximum distance of 12 m between end anchors, and end anchors with a breaking strength of at least 90 kN. [3]

• Compatibility: Snaphooks must be sized to properly fit the member to which they are connected, and locking-type snaphooks should be used to prevent unintentional disengagement. [4]

• Inspection: Fall arrest systems should be inspected before each use for wear, damage, and deterioration. Defective components must be removed from service. [4]

• Training: Employees must be trained in the proper installation and use of fall protection systems. [1]

• Rescue: Employers must provide for prompt rescue of employees in the event of a fall or ensure employees can rescue themselves. [4]

• Fall Protection Plan: When conventional fall protection is not feasible on residential roofs, a fall protection plan that meets the requirements of 29 CFR 1926.502(k) must be developed and implemented, along with the necessary training. [2]

• Qualified Person: Rope descent systems require annual inspection and certification of each anchorage by a qualified person. [2]

These requirements aim to minimize fall hazards and ensure that fall protection systems are reliable and effective.