Fall protection for ironworkers is covered under 29 CFR 1926 Subpart R, which specifically addresses steel erection [1]. Key aspects include:

• Fall Distance: Workers on a walking/working surface with an unprotected side or edge more than 15 feet (4.6 m) above a lower level must be protected from fall hazards [2].
• Acceptable Systems: Fall protection can be achieved through guardrail systems, safety net systems, personal fall arrest systems, positioning device systems, or fall restraint systems [2].
• Connectors: Connectors working at heights over 15 and up to 30 feet above a lower level must be provided with a personal fall arrest system, positioning device system, or fall restraint system and wear the necessary equipment to be tied off [2].
• Perimeter Safety Cables: On multi-story structures, perimeter safety cables must be installed at the final interior and exterior perimeters of the floors as soon as the metal decking has been installed 10, 13.
• Training: Employers must train each employee exposed to a fall hazard, covering the recognition and identification of fall hazards, and the use and operation of fall protection systems [3].

It's important to consult the full text of 29 CFR 1926 Subpart R for detailed requirements and exceptions [1].