Fall Protection Systems
The designer needs to understand OSHA’s use of definitions to avoid confusion when designing fall protection. Below are questions and answers to OSHA’s definitions to fall protection in OSHA’s Subpart D. It cannot be emphasized strongly enough that OSHA requires that a qualified person design a fall protection system.
A qualified person as defined by OSHA: “Qualified describes a person who, by possession of a recognized degree, certificate, or professional standing, or who by extensive knowledge, training, and experience has successfully demonstrated the ability to solve or resolve problems related to the subject matter, the work, or the project.” (OSHA Subpart D. Section 1910.21 scope and definitions)
What is Fall Protection?
Fall protection is a broad term that covers any equipment, device or system that prevents an employee from falling from an elevation or mitigates the effects of such a fall.
How can fall protection be managed?
Fall protection can be managed in four ways in a hierarchy as follows:
- Fall elimination: Eliminate the possibility of fall at heights.
- Fall engineering controls: Protect workers by removing hazardous conditions or by placing a barrier between the worker and the hazard. Passive systems like a guardrail system are examples of engineering controls.
- Fall arrest: The fall arrest equipment stops a worker from continuing a free-fall from the edge of a building. Fall arrest is part of personal protective equipment, but, however, is less effective than elimination or engineering controls.
- Administrative controls: These controls endeavor to limit or manage the risk by measures such as warning lines, safety observers, or a company safety policy and safety training that prohibits workers from approaching the edge. However, administrative controls have limited benefit because they do not prevent a worker from going over the edge and falling to his death.
Of the four above ways to manage fall protection, number one, fall elimination, and number two, engineering controls, are best practice and most effective.
What is a personal fall protection system?
Personal fall protection system means a system designed by a qualified person an employer uses to provided protection from falling or to safely arrest an employee’s fall if one occurs. Examples of personal fall protection systems include personal fall arrest systems, positioning systems, and travel restraint system.
What is a personal fall arrest system?
A personal fall arrest system is used to stop or arrest a fall in progress of a worker from striking a lower level. It commonly consists of a (1) full body harness, (2) anchorage, and (3) connector. While the equipment for a fall arrest system may be the least expensive to purchase, OSHA requires specialized training on how to properly use the equipment. Fall arrest training must include rescue training because of the potential for suspension trauma.
Fall Arrest System with Horizontal Life
1. Full Body Harness
3. Horizontal Lifeline
What is a travel restraint system?
Travel restraint system means a combination of an anchorage, anchorage connector, lanyard (or other means of connection), and body support that an employer uses to eliminate the possibility of an employee going over the edge of walking-working surface.
Travel Restraint System
1. Full Body Harness
2. Retractable Lanyard*
3. Horizontal Lifeline
*Note: A retractable lanyard can be used with an anchorage as a system to eliminate the possibility of the worker going over the edge. For example, if the retractable lanyard’s maximum length is 8 feet, then the distance from the anchorage to the edge of the building needs to be at a 10-foot minimum to keep the worker in fall restraint. In other words, keeping the lanyard 2 feet shorter than the edge distance can eliminate the risk of a fall.
At what height(s) does OSHA’s require fall protection?
There is no one rule that fits all. OSHA has one rule for general industry and another for construction. Within OSHA’s construction regulations there may be variances to the rule depending on the trade and 28 OSHA-approved state plans that are required to have standards that are least as effective. See Federal OSHA’s height requirements below:
General Industry: OSHA requires fall protection at elevations of four feet.
Construction Industry: OSHA requires fall protection at elevations of six feet.
What are OSHA’s edge distances requirements?
Again, there no one rule that fits all. OSHA has one rule for general industry and another for construction. Within OSHA’s construction regulations there may be variances to the rule depending on the trade and 28 OSHA-approved state plans that are required to have standards that are least as effective. See Federal OSHA’s edge distance requirements below for both general and the construction industry.
General Industry: OSHA requires fall protection at edge distances of 15 feet. See Federal OSHA’s edge distance requirements below for general industry:
“When work is performed less than 6 feet from the roof edge, the employer must ensure each employee is protected from falling by a guardrail system, safety net system, travel restraint system, or personal fall arrest system.” (OSHA’s Subpart D. Section 1910.28 section 13(i)) (See Fig 5 &6 pending addition).
“When work is performed at least 6 feet but less than 15 feet but less than 15 feet from the roof edge, the employer must ensure each employee is protected from falling by using a guardrail system, system, safety net system, travel restraint system, or personal fall arrest system. The employer may use a designated area when performing work that is both infrequent and temporary.” (OSHA’s Subpart D. Section 1910.28 section 13(ii) (See Fig 7 & 8 pending addition).
Construction Industry: “OSHA has determined that there is no safe distance from an unprotected side or edge that would render fall protection unnecessary.” See OSHA interpretation letter for more information:
What size hole, space, or gap in a roof or horizontal walking-working surface requires fall protection?
A hole that is at least 2 inches diameter is required to be protected by fall protection. See Federal OSHA’s height requirements below:
OSHA’s Subpart D, Section 1910.28 definition states: Hole means a gap or open space in a floor, roof, horizontal walking-working surface, or similar surface that is at least 2 inches (5 cm) in its least dimension. This applies to a hole that is more than 4 feet above a lower level. (OSHA Subpart D. Section 1910.28 section (b)(l)(I)
Are skylights deadly?
Yes, skylights (unless man-rated) are unprotected holes in the roof – but worse. Skylights are latent hazards because the skylight cover could lull a worker into a false sense of security. Many workers have fallen to their death through a skylight. See link to OSHA citation for failing to protect a worker from a skylight:
Do roof hatches require fall protection?
Yes, when a roof hatch is open it is a hole in the roof that is regulated by OSHA. One way to provide protection from such openings in the roof is with a hatch guard with walk through rungs.
What are acceptable means to protect a worker from a hole, skylights, or roof hatch?
Acceptable means to protect a worker include:
- Man-Rate Covers
- Travel restraint system
- Personal fall arrest system
- Hatch guard