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• Part Number: 1926

• Part Title: Safety and Health Regulations for Construction

• Subpart: L

• Subpart Title: Scaolds

• Standard

Number: 1926.452

• Title: Additional reuire!ents a""lica#le to s"eci$c ty"es of scaolds.

• GPO Source: e%C&R

'n addition to the a""lica#le reuire!ents of 1926.451( the follo)ing reuire!ents a""ly to the s"eci$c

ty"es of scaolds indicated. Scaolds not s"eci$cally addressed #y 1926.452( such as #ut not li!ited to

syste!s scaolds( !ust !eet the reuire!ents of 1926.451.

1926.452(a

*+ole scaolds.*

1926.452(a(1

,hen "latfor!s are #eing !o-ed to the net le-el( the eisting "latfor! shall #e left undistur#ed until the

ne) #earers ha-e #een set in "lace and #raced( "rior to recei-ing the ne) "latfor!s.

1926.452(a(2

Cross#racing shall #e installed #et)een the inner and outer sets of "oles on dou#le "ole scaolds.

1926.452(a(!

/iagonal #racing in #oth directions shall #e installed across the entire inside face of dou#le%"ole scaolds

used to su""ort loads eui-alent to a unifor!ly distri#uted load of 50 "ounds 222 g3 or !ore "er suare

foot 929 suare c!3.

1926.452(a(4

/iagonal #racing in #oth directions shall #e installed across the entire outside face of all dou#le% and sing

"ole scaolds.

1926.452(a(5

Runners and #earers shall #e installed on edge.

1926.452(a(6

earers shall etend a !ini!u! of inches .6 c!3 o-er the outside edges of runners.

..1926.452(a)(7)

1926.452(a("

Runners shall etend o-er a !ini!u! of t)o "oles( and shall #e su""orted #y #earing #locs securely

attached to the "oles.

1926.452(a(#

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races( #earers( and runners shall not #e s"liced #et)een "oles.

1926.452(a(9

,here )ooden "oles are s"liced( the ends shall #e suared and the u""er section shall rest suarely on th

lo)er section. ,ood s"lice "lates shall #e "ro-ided on at least t)o ad7acent sides( and shall etend at leas

2 feet 0.6 !3 on either side of the s"lice( o-erla" the a#utted ends eually( and ha-e at least the sa!e

cross%sectional areas as the "ole. S"lice "lates of other !aterials of eui-alent strength !ay #e used.

1926.452(a(1$

+ole scaolds o-er 60 feet in height shall #e designed #y a registered "rofessional engineer( and shall #econstructed and loaded in accordance )ith that design. 8on%!andatory A""endi A to this su#"art conta

ea!"les of criteria that )ill ena#le an e!"loyer to co!"ly )ith design and loading reuire!ents for "ole

scaolds under 60 feet in height.

1926.452(b

*u#e and cou"ler scaolds.*

1926.452(b(1

,hen "latfor!s are #eing !o-ed to the net le-el( the eisting "latfor! shall #e left undistur#ed until the

ne) #earers ha-e #een set in "lace and #raced "rior to recei-ing the ne) "latfor!s.

..1926.452(b)(2)

1926.452(b(2

 rans-erse #racing for!ing an *:* across the )idth of the scaold shall #e installed at the scaold ends a

at least at e-ery third set of "osts hori;ontally !easured fro! only one end3 and e-ery fourth runner

-ertically. racing shall etend diagonally fro! the inner or outer "osts or runners u")ard to the net out

or inner "osts or runners. uilding ties shall #e installed at the #earer le-els #et)een the trans-erse #raci

and shall confor! to the reuire!ents of 1926.451c313.

1926.452(b(!

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Runners shall #e installed along the length of the scaold( located on #oth the inside and outside "osts at

le-el heights )hen tu#e and cou"ler guardrails and !idrails are used on outside "osts( they !ay #e used

lieu of outside runners3.

1926.452(b(#

Runners shall #e interloced on straight runs to for! continuous lengths( and shall #e cou"led to each "o

 he #otto! runners and #earers shall #e located as close to the #ase as "ossi#le.

1926.452(b(9

Cou"lers shall #e of a structural !etal( such as dro"%forged steel( !allea#le iron( or structural gradealu!inu!. he use of gray cast iron is "rohi#ited.

1926.452(b(1$

 u#e and cou"ler scaolds o-er 125 feet in height shall #e designed #y a registered "rofessional enginee

and shall #e constructed and loaded in accordance )ith such design. 8on%!andatory A""endi A to this

su#"art contains ea!"les of criteria that )ill ena#le an e!"loyer to co!"ly )ith design and loading

reuire!ents for tu#e and cou"ler scaolds under 125 feet in height.

1926.452(c

*&a#ricated fra!e scaolds* tu#ular )elded fra!e scaolds3.

1926.452(c(1

,hen !o-ing "latfor!s to the net le-el( the eisting "latfor! shall #e left undistur#ed until the ne) end

fra!es ha-e #een set in "lace and #raced "rior to recei-ing the ne) "latfor!s.

..1926.452(c)(2)

1926.452(c(2

&ra!es and "anels shall #e #raced #y cross( hori;ontal( or diagonal #races( or co!#ination thereof( )hich

secure -ertical !e!#ers together laterally. he cross #races shall #e of such length as )ill auto!atically

suare and align -ertical !e!#ers so that the erected scaold is al)ays "lu!#( le-el( and suare. All #rac

connections shall #e secured.

1926.452(c(!

&ra!es and "anels shall #e 7oined together -ertically #y cou"ling or stacing "ins or eui-alent !eans.

1926.452(c(4

,here u"lift can occur )hich )ould dis"lace scaold end fra!es or "anels( the fra!es or "anels shall #e

loced together -ertically #y "ins or eui-alent !eans.

1926.452(c(5

racets used to su""ort cantile-ered loads shall=

1926.452(c(5(i

e seated )ith side%#racets "arallel to the fra!es and end%#racets at 90 degrees to the fra!es>

1926.452(c(5(ii

8ot #e #ent or t)isted fro! these "ositions> and

1926.452(c(5(iii

e used only to su""ort "ersonnel( unless the scaold has #een designed for other loads #y a uali$ed

engineer and #uilt to )ithstand the ti""ing forces caused #y those other loads #eing "laced on the #race

su""orted section of the scaold.

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1926.452(c(6

Scaolds o-er 125 feet ?.0 !3 in height a#o-e their #ase "lates shall #e designed #y a registered

"rofessional engineer( and shall #e constructed and loaded in accordance )ith such design.

..1926.452(d)

1926.452(d

*+lasterers@( decorators@( and large area scaolds.* Scaolds shall #e constructed in accordance )ith

"aragra"hs a3( #3( or c3 of this section( as a""ro"riate.

1926.452(e

*riclayers@ suare scaolds suares3.*

1926.452(e(1

Scaolds !ade of )ood shall #e reinforced )ith gussets on #oth sides of each corner.

1926.452(e(2

/iagonal #races shall #e installed on all sides of each suare.

1926.452(e(!

/iagonal #races shall #e installed #et)een suares on the rear and front sides of the scaold( and shall

etend fro! the #otto! of each suare to the to" of the net suare.

1926.452(e(4

Scaolds shall not eceed three tiers in height( and shall #e so constructed and arranged that one suare

rests directly a#o-e the other. he u""er tiers shall stand on a continuous ro) of "lans laid across the ne

lo)er tier( and shall #e nailed do)n or other)ise secured to "re-ent dis"lace!ent.

1926.452(%

*Horse scaolds.*

1926.452(%(1

Scaolds shall not #e constructed or arranged !ore than t)o tiers or 10 feet .0 !3 in height( )hiche-er

less.

1926.452(%(2

,hen horses are arranged in tiers( each horse shall #e "laced directly o-er the horse in the tier #elo).

..1926.452(f)(3)

1926.452(%(!

,hen horses are arranged in tiers( the legs of each horse shall #e nailed do)n or other)ise secured to"re-ent dis"lace!ent.

1926.452(%(4

,hen horses are arranged in tiers( each tier shall #e cross#raced.

1926.452(&

*&or! scaolds and car"enters@ #racet scaolds.*

1926.452(&(1

ach #racet( ece"t those for )ooden #racet%for! scaolds( shall #e attached to the su""orting for!)o

or structure #y !eans of one or !ore of the follo)ing= nails> a !etal stud attach!ent de-ice> )elding>

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hooing o-er a secured structural su""orting !e!#er( )ith the for! )ales either #olted to the for! or

secured #y sna" ties or tie #olts etending through the for! and securely anchored> or( for car"enters@

#racet scaolds only( #y a #olt etending through to the o""osite side of the structure@s )all.

1926.452(&(2

,ooden #racet%for! scaolds shall #e an integral "art of the for! "anel.

1926.452(&(!

&olding ty"e !etal #racets( )hen etended for use( shall #e either #olted or secured )ith a locing%ty"e

"in.

..1926.452(h)

1926.452('

*Roof #racet scaolds.*

1926.452('(1

Scaold #racets shall #e constructed to $t the "itch of the roof and shall "ro-ide a le-el su""ort for the

"latfor!.

1926.452('(2

racets including those "ro-ided )ith "ointed !etal "ro7ections3 shall #e anchored in "lace #y nails unle

it is i!"ractical to use nails. ,hen nails are not used( #racets shall #e secured in "lace )ith $rst%grade

!anila ro"e of at least three%fourth inch 1.9 c!3 dia!eter( or eui-alent.

1926.452(i

*

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1926.452(i("

 o "re-ent their dis"lace!ent( "latfor! units shall #e nailed( #olted( or other)ise secured to outriggers.

1926.452(i(#

Scaolds and scaold co!"onents shall #e designed #y a registered "rofessional engineer and shall #e

constructed and loaded in accordance )ith such design.

1926.452(

*+u!" 7ac scaolds.*

1926.452((1

+u!" 7ac #racets( #races( and accessories shall #e fa#ricated fro! !etal "lates and angles. ach "u!"

 7ac #racet shall ha-e t)o "ositi-e gri""ing !echanis!s to "re-ent any failure or sli""age.

1926.452((2

+oles shall #e secured to the structure #y rigid triangular #racing or eui-alent at the #otto!( to"( and ot

"oints as necessary. ,hen the "u!" 7ac has to "ass #racing already installed( an additional #race shall #

installed a""roi!ately 4 feet 1.2 !3 a#o-e the #race to #e "assed( and shall #e left in "lace until the "u

 7ac has #een !o-ed and the original #race reinstalled.

..1926.452(j)(3)

1926.452((!

,hen guardrails are used for fall "rotection( a )or#ench !ay #e used as the to"rail only if it !eets all th

reuire!ents in "aragra"hs g343ii3( -ii3( -iii3( and iii3 of 1926.451.

1926.452((4

,or #enches shall not #e used as scaold "latfor!s.

1926.452((5

,hen "oles are !ade of )ood( the "ole lu!#er shall #e straight%grained( free of shaes( large loose or denots( and other defects )hich !ight i!"air strength.

1926.452((6

,hen )ood "oles are constructed of t)o continuous lengths( they shall #e 7oined together )ith the sea!

"arallel to the #racet.

1926.452(("

,hen t)o #y fours are s"liced to !ae a "ole( !ending "lates shall #e installed at all s"lices to de-elo" t

full strength of the !e!#er.

1926.452()

*Ladder 7ac scaolds.*

1926.452()(1

+latfor!s shall not eceed a height of 20 feet 6.1 !3.

1926.452()(2

All ladders used to su""ort ladder 7ac scaolds shall !eet the reuire!ents of su#"art : of this "art %%

Stair)ays and Ladders( ece"t that 7o#%!ade ladders shall not #e used to su""ort ladder 7ac scaolds.

..1926.452(k)(3)

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1926.452()(!

 he ladder 7ac shall #e so designed and constructed that it )ill #ear on the side rails and ladder rungs or

the ladder rungs alone. 'f #earing on rungs only( the #earing area shall include a length of at least 10 inch

25.4 c!3 on each rung.

1926.452()(4

Ladders used to su""ort ladder 7acs shall #e "laced( fastened( or eui""ed )ith de-ices to "re-ent sli""i

1926.452()(5

Scaold "latfor!s shall not #e #ridged one to another.

1926.452(l

*,indo) 7ac scaolds.*

1926.452(l(1

Scaolds shall #e securely attached to the )indo) o"ening.

1926.452(l(2

Scaolds shall #e used only for the "ur"ose of )oring at the )indo) o"ening through )hich the 7ac is

"laced.

1926.452(l(!

,indo) 7acs shall not #e used to su""ort "lans "laced #et)een one )indo) 7ac and another( or for oth

ele!ents of scaolding.

1926.452(m

*Cra)ling #oards chicen ladders3.*

1926.452(m(1

Cra)ling #oards shall etend fro! the roof "ea to the ea-es )hen used in connection )ith roof

construction( re"air( or !aintenance.

..1926.452(m)(2)

1926.452(m(2

Cra)ling #oards shall #e secured to the roof #y ridge hoos or #y !eans that !eet eui-alent criteria e.g

strength and dura#ility3.

1926.452(n

*Ste"( "latfor!( and trestle ladder scaolds.*

1926.452(n(1

Scaold "latfor!s shall not #e "laced any higher than the second highest rung or ste" of the ladder

su""orting the "latfor!.

1926.452(n(2

All ladders used in con7unction )ith ste"( "latfor! and trestle ladder scaolds shall !eet the "ertinent

reuire!ents of su#"art : of this "art %% Stair)ays and Ladders( ece"t that 7o#%!ade ladders shall not #e

used to su""ort such scaolds.

1926.452(n(!

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Ladders used to su""ort ste"( "latfor!( and trestle ladder scaolds shall #e "laced( fastened( or eui""ed

)ith de-ices to "re-ent sli""ing.

1926.452(n(4

Scaolds shall not #e #ridged one to another.

1926.452(o

*Single%"oint ad7usta#le sus"ension scaolds.*

1926.452(o(1

,hen t)o single%"oint ad7usta#le sus"ension scaolds are co!#ined to for! a t)o%"oint ad7usta#le

sus"ension scaold( the resulting t)o%"oint scaold shall co!"ly )ith the reuire!ents for t)o%"oint

ad7usta#le sus"ension scaolds in "aragra"h "3 of this section.

..1926.452(o)(2)

1926.452(o(2

 he su""orting ro"e #et)een the scaold and the sus"ension de-ice shall #e e"t -ertical unless all of th

follo)ing conditions are !et=

1926.452(o(2(i

 he rigging has #een designed #y a uali$ed "erson( and

1926.452(o(2(ii

 he scaold is accessi#le to rescuers( and

1926.452(o(2(iii

 he su""orting ro"e is "rotected to ensure that it )ill not chafe at any "oint )here a change in direction

occurs( and

1926.452(o(2(i*

 he scaold is "ositioned so that s)inging cannot #ring the scaold into contact )ith another surface.

1926.452(o(!

oats)ains@ chair tacle shall consist of correct si;e #all #earings or #ushed #locs containing safety hoo

and "ro"erly *eye%s"liced* !ini!u! $-e%eighth 5?3 inch 1.6 c!3 dia!eter $rst%grade !anila ro"e( or

other ro"e )hich )ill satisfy the criteria e.g.( strength and dura#ility3 of !anila ro"e.

1926.452(o(4

oats)ains@ chair seat slings shall #e ree-ed through four corner holes in the seat> shall cross each other

the underside of the seat> and shall #e rigged so as to "re-ent sli""age )hich could cause an out%of%le-el

condition.

..1926.452(o)(5)

1926.452(o(5

oats)ains@ chair seat slings shall #e a !ini!u! of $-e%eight 5?3 inch 1.6 c!3 dia!eter $#er( synthetic

or other ro"e )hich )ill satisfy the criteria e.g.( strength( sli" resistance( dura#ility( etc.3 of $rst grade

!anila ro"e.

1926.452(o(6

,hen a heat%"roducing "rocess such as gas or arc )elding is #eing conducted( #oats)ains@ chair seat slin

shall #e a !ini!u! of three%eight ?3 inch 1.0 c!3 )ire ro"e.

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1926.452(o("

8on%cross%la!inated )ood #oats)ains@ chairs shall #e reinforced on their underside #y cleats securely

fastened to "re-ent the #oard fro! s"litting.

1926.452(p

*)o%"oint ad7usta#le sus"ension scaolds s)ing stages3.* he follo)ing reuire!ents do not a""ly to t)

"oint ad7usta#le sus"ension scaolds used as !asons@ or stonesetters@ scaolds. Such scaolds are co-er

#y "aragra"h 3 of this section.

1926.452(p(1

+latfor!s shall not #e !ore than 6 inches 0.9 !3 )ide unless designed #y a uali$ed "erson to "re-ent

unsta#le conditions.

1926.452(p(2

 he "latfor! shall #e securely fastened to hangers stirru"s3 #y D%#olts or #y other !eans )hich satisfy t

reuire!ents of 1926.451a3.

1926.452(p(!

 he #locs for $#er or synthetic ro"es shall consist of at least one dou#le and one single #loc. he shea-

of all #locs shall $t the si;e of the ro"e used.

..1926.452(p)(4)

1926.452(p(4

+latfor!s shall #e of the ladder%ty"e( "lan%ty"e( #ea!%ty"e( or light%!etal ty"e. Light !etal%ty"e "latfor!

ha-ing a rated ca"acity of 50 "ounds or less and "latfor!s 40 feet 12.2 !3 or less in length shall #e tes

and listed #y a nationally recogni;ed testing la#oratory.

1926.452(p(5

 )o%"oint scaolds shall not #e #ridged or other)ise connected one to another during raising and lo)erin

o"erations unless the #ridge connections are articulated attached3( and the hoists "ro"erly si;ed.

1926.452(p(6

+assage !ay #e !ade fro! one "latfor! to another only )hen the "latfor!s are at the sa!e height( are

a#utting( and )al%through stirru"s s"eci$cally designed for this "ur"ose are used.

1926.452(+

*Eulti%"oint ad7usta#le sus"ension scaolds( stonesetters@ !ulti%"oint ad7usta#le sus"ension scaolds( an

!asons@ !ulti%"oint ad7usta#le sus"ension scaolds.*

1926.452(+(1

,hen t)o or !ore scaolds are used they shall not #e #ridged one to another unless they are designed to

#e #ridged( the #ridge connections are articulated( and the hoists are "ro"erly si;ed.

1926.452(+(2

'f #ridges are not used( "assage !ay #e !ade fro! one "latfor! to another only )hen the "latfor!s are

the sa!e height and are a#utting.

..1926.452(q)(3)

1926.452(+(!

Scaolds shall #e sus"ended fro! !etal outriggers( #racets( )ire ro"e slings( hoos( or !eans that !ee

eui-alent criteria e.g.( strength( dura#ility3.

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1926.452(r

*Catenary scaolds.*

1926.452(r(1

8o !ore than one "latfor! shall #e "laced #et)een consecuti-e -ertical "icu"s( and no !ore than t)o

"latfor!s shall #e used on a catenary scaold.

1926.452(r(2

+latfor!s su""orted #y )ire ro"es shall ha-e hoo%sha"ed sto"s on each end of the "latfor!s to "re-ent

the! fro! sli""ing o the )ire ro"es. hese hoos shall #e so "laced that they )ill "re-ent the "latfor!

fro! falling if one of the hori;ontal )ire ro"es #reas.

1926.452(r(!

,ire ro"es shall not #e tightened to the etent that the a""lication of a scaold load )ill o-erstress the!.

1926.452(r(4

,ire ro"es shall #e continuous and )ithout s"lices #et)een anchors.

1926.452(,

*&loat shi"3 scaolds.*

1926.452(,(1

 he "latfor! shall #e su""orted #y a !ini!u! of t)o #earers( each of )hich shall "ro7ect a !ini!u! of 6

inches 15.2 c!3 #eyond the "latfor! on #oth sides. ach #earer shall #e securely fastened to the "latfor!

1926.452(,(2

Ro"e connections shall #e such that the "latfor! cannot shift or sli".

..1926.452(s)(3)

1926.452(,(!

,hen only t)o ro"es are used )ith each Boat=

1926.452(,(!(i

 hey shall #e arranged so as to "ro-ide four ends )hich are securely fastened to o-erhead su""orts.

1926.452(,(!(ii

ach su""orting ro"e shall #e hitched around one end of the #earer and "ass under the "latfor! to the

other end of the #earer )here it is hitched again( lea-ing suFcient ro"e at each end for the su""orting tie

1926.452(t

*'nterior hung scaolds.*

1926.452(t(1

Scaolds shall #e sus"ended only fro! the roof structure or other structural !e!#er such as ceiling #ea!

1926.452(t(2

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Sus"ension ro"es and ca#les shall #e connected to the o-erhead su""orting !e!#ers #y shacles( cli"s(

thi!#les( or other !eans that !eet eui-alent criteria e.g.( strength( dura#ility3.

..1926.452(u)

1926.452(u

*8eedle #ea! scaolds.*

1926.452(u(1

Scaold su""ort #ea!s shall #e installed on edge.

1926.452(u(2

Ro"es or hangers shall #e used for su""orts( ece"t that one end of a needle #ea! scaold !ay #e

su""orted #y a "er!anent structural !e!#er.

1926.452(u(!

 he ro"es shall #e securely attached to the needle #ea!s.

1926.452(u(4

 he su""ort connection shall #e arranged so as to "re-ent the needle #ea! fro! rolling or #eco!ing

dis"laced.

1926.452(u(5

+latfor! units shall #e securely attached to the needle #ea!s #y #olts or eui-alent !eans. Cleats and

o-erhang are not considered to #e adeuate !eans of attach!ent.

1926.452(*

*Eulti%le-el sus"ended scaolds.*

1926.452(*(1

Scaolds shall #e eui""ed )ith additional inde"endent su""ort lines( eual in nu!#er to the nu!#er of

"oints su""orted( and of eui-alent strength to the sus"ension ro"es( and rigged to su""ort the scaold i

the e-ent the sus"ension ro"es3 fail.

1926.452(*(2

'nde"endent su""ort lines and sus"ension ro"es shall not #e attached to the sa!e "oints of anchorage.

..1926.452(v)(3)

1926.452(*(!

Su""orts for "latfor!s shall #e attached directly to the su""ort stirru" and not to any other "latfor!.

1926.452(-

*Eo#ile scaolds.*

1926.452(-(1

Scaolds shall #e #raced #y cross( hori;ontal( or diagonal #races( or co!#ination thereof( to "re-ent rac

or colla"se of the scaold and to secure -ertical !e!#ers together laterally so as to auto!atically suare

and align the -ertical !e!#ers. Scaolds shall #e "lu!#( le-el( and suared. All #race connections shall #

secured.

1926.452(-(1(i

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Scaolds constructed of tu#e and cou"ler co!"onents shall also co!"ly )ith the reuire!ents of "aragra

#3 of this section>

1926.452(-(1(ii

Scaolds constructed of fa#ricated fra!e co!"onents shall also co!"ly )ith the reuire!ents of "aragra

c3 of this section.

1926.452(-(2

Scaold casters and )heels shall #e loced )ith "ositi-e )heel andor )heel and s)i-el locs( or eui-ale

!eans( to "re-ent !o-e!ent of the scaold )hile the scaold is used in a stationary !anner.

1926.452(-(!

Eanual force used to !o-e the scaold shall #e a""lied as close to the #ase as "ractica#le( #ut not !ore

than 5 feet 1.5 !3 a#o-e the su""orting surface.

..1926.452(w)(4)

1926.452(-(4

+o)er syste!s used to "ro"el !o#ile scaolds shall #e designed for such use. &orlifts( trucs( si!ilar !o

-ehicles or add%on !otors shall not #e used to "ro"el scaolds unless the scaold is designed for such

"ro"ulsion syste!s.

1926.452(-(5

Scaolds shall #e sta#ili;ed to "re-ent ti""ing during !o-e!ent.

1926.452(-(6

!"loyees shall not #e allo)ed to ride on scaolds unless the follo)ing conditions eist=

1926.452(-(6(i

 he surface on )hich the scaold is #eing !o-ed is )ithin degrees of le-el( and free of "its( holes( and

o#structions>

1926.452(-(6(ii

 he height to #ase )idth ratio of the scaold during !o-e!ent is t)o to one or less( unless the scaold is

designed and constructed to !eet or eceed nationally recogni;ed sta#ility test reuire!ents such as tho

listed in "aragra"h 3 of A""endi A to this su#"art A8S'S'A A92.5 and A92.63>

1926.452(-(6(iii

1926.452(-(6(i*

,hen "o)er syste!s are used( the "ro"elling force is a""lied directly to the )heels( and does not "roducs"eed in ecess of 1 foot "er second . !"s3> and

1926.452(-(6(*

8o e!"loyee is on any "art of the scaold )hich etends out)ard #eyond the )heels( casters( or other

su""orts.

..1926.452(w)(7)

1926.452(-("

+latfor!s shall not etend out)ard #eyond the #ase su""orts of the scaold unless outrigger fra!es or

eui-alent de-ices are used to ensure sta#ility.

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1926.452(-(#

,here le-eling of the scaold is necessary( scre) 7acs or eui-alent !eans shall #e used.

1926.452(-(9

Caster ste!s and )heel ste!s shall #e "inned or other)ise secured in scaold legs or ad7ust!ent scre)s

1926.452(-(1$

efore a scaold is !o-ed( each e!"loyee on the scaold shall #e !ade a)are of the !o-e.

1926.452(

*Re"air #racet scaolds.*

1926.452((1

racets shall #e secured in "lace #y at least one )ire ro"e at least 12 inch 1.2 c!3 in dia!eter.

1926.452((2

ach #racet shall #e attached to the securing )ire ro"e or ro"es3 #y a "ositi-e locing de-ice ca"a#le of

"re-enting the unintentional detach!ent of the #racet fro! the ro"e( or #y eui-alent !eans.

1926.452((!

ach #racet( at the contact "oint #et)een the su""orting structure and the #otto! of the #racet( shall

"ro-ided )ith a shoe heel #loc or foot3 ca"a#le of "re-enting the lateral !o-e!ent of the #racet.

..1926.452(x)(4)

1926.452((4

+latfor!s shall #e secured to the #racets in a !anner that )ill "re-ent the se"aration of the "latfor!s fro

the #racets and the !o-e!ent of the "latfor!s or the #racets on a co!"leted scaold.

1926.452((5

,hen a )ire ro"e is "laced around the structure in order to "ro-ide a safe anchorage for "ersonal fall arresyste!s used #y e!"loyees erecting or dis!antling scaolds( the )ire ro"e shall !eet the reuire!ents o

su#"art E of this "art( #ut shall #e at least 516 inch 0.? c!3 in dia!eter.

1926.452((6

ach )ire ro"e used for securing #racets in "lace or as an anchorage for "ersonal fall arrest syste!s sha

#e "rotected fro! da!age due to contact )ith edges( corners( "rotrusions( or other discontinuities of the

su""orting structure or scaold co!"onents.

1926.452(("

 ensioning of each )ire ro"e used for securing #racets in "lace or as an anchorage for "ersonal fall arres

syste!s shall #e #y !eans of a turn#ucle at least 1 inch 2.54 c!3 in dia!eter( or #y eui-alent !eans.

1926.452((#

ach turn#ucle shall #e connected to the other end of its ro"e #y use of an eyes"lice thi!#le of a si;e

a""ro"riate to the turn#ucle to )hich it is attached.

1926.452((9

D%#olt )ire ro"e cli"s shall not #e used on any )ire ro"e used to secure #racets or to ser-e as an anchor

"ersonal fall arrest syste!s.

..1926.452(x)(10)

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1926.452((1$

 he e!"loyer shall ensure that !aterials shall not #e dro""ed to the outside of the su""orting structure.

1926.452((11

Scaold erection shall "rogress in only one direction around any structure.

1926.452(/

*Stilts.* Stilts( )hen used( shall #e used in accordance )ith the follo)ing reuire!ents=

1926.452(/(1

An e!"loyee !ay )ear stilts on a scaold only if it is a large area scaold.

1926.452(/(2

,hen an e!"loyee is using stilts on a large area scaold )here a guardrail syste! is used to "ro-ide fall

"rotection( the guardrail syste! shall #e increased in height #y an a!ount eual to the height of the stilts

#eing used #y the e!"loyee.

1926.452(/(!

Surfaces on )hich stilts are used shall #e Bat and free of "its( holes and o#structions( such as de#ris( as )

as other tri""ing and falling ha;ards.

1926.452(/(4

Stilts shall #e "ro"erly !aintained. Any alteration of the original eui"!ent shall #e a""ro-ed #y the

!anufacturer.

G44 &R ?5( &e#. 9( 199> 44 &R 20940. A"r. 6( 199( as a!ended at 55 &R 46?( 8o-. 14( 1990> 61 &R

46025( Aug. 0( 1996

 8et Standard 1926.453

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