The Many Trigger Height/Width of Fall Protection in Construction

For friends and health and safety professionals benefit, who need quick access to the standards of falls in construction, I made this guide.  The first column are permitted measures, not follow them, constitute a violation of the standards detailed in the third column.

Para beneficio de amistades y profesionales de seguridad y salud que requieren de un acceso rápido a las normas de caídas de la construcción, preparé esta tabla. En la primera columna están las medidas permitidas, que excederlas, constituyen una violación a las normas detalladas en la tercera columna.     

Height/Width
Condition
Applicable OSHA Standards
0'
Falls onto dangerous equipment:        
1926.501(b)(8)(i)
1"
Maximum spacing between scaffold planks:   
1926.451(b)(l)(i)
2"
OSHA's definition of a hole requiring protection:       
1926.500(b) & 751
3-1/2"
Minimum height of toe boards on perimeter protection:   
1926.502(j)(3)
6"
Minimum end lap on scaffold planks:      
1926.451(b)(4)
8"
Minimum width of an integral prefabricated scaffold ladder rung:   
1926.451(e)(6)(ii)
12"
Minimum dimension of a walking/working surface opening in steel erection:    
1926.751
14"
Maximum spacing between rungs on ladders:
1926.1053(a)(3)(i)
14"
Maximum horizontal distance most scaffold platforms can be from the wall:     
1926.451{b)(3)
16-3/4"
Maximum spacing between rungs on prefabricated scaffold access frames:  
1926.451(e)(6)(vi)
18"
Maximum horizontal distance plastering scaffolds can be from the wall:
1926.451(b)(3)(ii)
≥ 18"
Maximum width of openings in walls without protection:        
1926.500(b)
19"
Maximum width of an opening in a midrail baluster:
1926.502(b)(2)(iv)
19"
Break in elevation without a step, ramp etc.:   
1926.1051(a)
>2'
First step onto a scaffold system:        
1926.451(e)(l)
20 - 30"
Crossing point of braces used as a mid-rail on scaffolds:     
1926.451(g)(4)(xv)
34"
Minimum height of a warning line:    
1926.502(f)(2)(ii)
36"
Height an access ladder must extend above an upper level without a hand hold platform:
1926.1053(b)(l)
38"
Minimum height of scaffold top-rail guardrails:
1926.451(g)(4)(ii)
38 - 48"
Crossing point of braces used as top rail on scaffolds:
1926.45 l(g)(4)(xv)
39"
Maximum height-of a warning line:   
1926.502(i)(2)(ii)
39"
Minimum height of parapets or window/wall openings before guardrails required:
1926.502(b)(l)
42"
Height of a top rail of a perimeter guardrail system or its equivalent +/- 3":     
1926.502(b)(l)
45"
Maximum height of a control line marking a Controlled Access Zone:       
1926.502(g)(3)(ii)
6'
Work on forms or steel reinforcing:    
1926.501(b){5)
6'
Work on surfaces such as decks, non-residential roofs, ramps, etc.:       
1926.501(b)(6)
6'            
Minimum distance of warning lines to edges for roofing work (no mechanized equipment):
1926.502(f)(l)(i)
6'            
Can free fall before being arrested unless the equipment is designed for a greater distance:
1926.502(d)(16)(iii)
8'
Maximum spacing of posts on a 2"x4" guardrail system:
1926 Subpart M Appendix B(l)
10'
Minimum distance of warning lines to edges for roofing work (with mechanized equipment):
1926.502(f)(l)(ii)
>10'
Scaffold platforms without guardrails:
1926.451(g)(l)
>15'
Steel erection work except CDZ's and Connectors:     
1926.760(a)(l)
15'
Minimum distance of warning lines for other than roofing activities:  
Letter of interp. 8/1/00
9-1/2'
Can fall before being fully stopped by typical fall arrest equipment:
1926.502(d)(16)(iii, iv, v)
24'
Vertical fixed ladders without cages, etc.:       
1926.1053(a)(18)
>24
Climbing vertical steel reinforcing:    
 Letter of interp. 5/19/1997
≤ 30'
Steel erection for CDZ's and Connectors:       
1926.760(b)(l) & (c)(l)
30'
Falls into safety nets:
1926.502(c)(l)
35'
Maximum height of scaffold ladders without rest platforms:    
1926.451(e)(2)(iii)
No Limit
Falls from portable ladders:   
Letter of interp. 1/13/2000

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