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DE P ARTMEN T OF CONSU MER AND INDUS TRY SER VICES DIRE CTOR’S OFF ICE
CONS TRU CTIO N SAFE TY STAND ARDS
Filed with th e Secretar y of Stat e on J uly 23, 2001
These ru les tak e effect 7 days after filing with th e Secretar y of Stat e
(By auth ority con ferr ed on th e director of th e dep artm ent of con sum er an d industr y services by sections 19 an d 21 of 1974 PA 154 an d Execut ive Reorgan izat ion Order No. 1996 -2, MCL 408 .1019 , 408 .1021 , an d 445 .2001 )
R 408 .42201 , R 408 .42211 , R 408 .42213 , R 408 .42221 , R 408 .42223 , R 408 .42224 , R
408 .42229 , R 408 .42230 , R 408 .42233 , R 408 .42234 , R 408 .42235 , R 408 .42236 , R
408 .32237 , R 408 .32238 , R 408 .42241 , R 408 .42243 of th e Michigan Administrat ive Code ar e am ended , R 408 .42222 of th e Michigan Administrat ive Code is rescinded , an d R 408 .42225 is added to th e code as follows :
P ART 22 . SIGNALS, SIGNS , TAGS, AND BARR ICADES R 408 .42201 Scope .
Rule 2201 . This part perta ins to th e des ign, placement , relocat ion, cover ing, removal,
use, an d ma int enan ce of signa ls, tra ffic contr ol devices, a ccide nt prevent ion signs, ta gs, an d barr icades for con stru ction operat ions.
R 408 .42211 De finitio ns ; A to C.
Rule 2211 . (1) "Accide nt prevent ion sign" mean s a sign used to warn of a ha zar d or to provide safety instru ctions or directions.
(2) "Accide nt prevent ion ta g" mean s a ta g which is used to warn of an existing or imm ediat e ha zar d an d which is temporar ily atta ched to a part of equipment or a stru ctur e.
(3) "Barr icade" mean s a readily visible obstru ct ion used to direct th e passage of employees or vehicles.
(4) "Barr ier" mean s a device that is des igned to prevent penetrat ion from a way of tra vel to ar eas behind th e barr ier to minimize injur y to employees who per form con stru ct ion operat ions.
(5) "Caut ion sign or ta g" mean s a sign or ta g used to warn of a potent ia l ha zar d or to warn against an un safe pra ct ice.
R 408 .42213 De fin itio ns ; E to T.
Rule 2213 . (1) "Exit sign" mean s a sign used to des ignat e a point of dischar ge from a room or building.
(2) “Han dhold” mean s an a ffixe d device or des ignat ed place where a person r iding on a moving vehicle or on equipment to per form work can sta bilize his or her position by gripping with his or her free han d or han ds.
(3) “Out of order ta g" mean s a ta g used to indicat e a ma chine is ma lfun ct ioning.
(4) "Safety instru ct ion sign" mean s a sign used for genera l instru ct ion or suggestion relat ive to safety.
(5) “Sign” mean s a boar d, sheet, poster, or placar d displayed to con vey in format ion or direction eith er temporar ily or perman ent ly.
(6) "Signa l" mean s a spe cific use of han ds or a visua l or au dible device, such as a flashing light or horn , to warn of a possible or existing ha zar d.
(7) “Tag” mean s a piece of mat erial, usua lly paper, meta l, or plastic, atta ched to a piece of equipment or stru ctur e for th e pur pose of ident ificat ion, instru ct ion, or classificat ion.
(8) "Tra ffic contr ol devices" mean s all signs, signa ls, mark ings, an d devices placed or erected for th e pur pose of regulat ing, warn ing, an d guiding vehicular tra ffic an d for providing employee protection in a work zone.
(9) "Tra ffic regulat or" mean s a person who ha s been tra ined, properly att ired, an d equipped to regulat e tra ffic flow to provide employee protection in a work zone.
R 408 .42221 Duties of emp loye r.
Rule 2221 . (1) An employer sha ll provide, insta ll, an d ma inta in signa ls, signs, barr icades, an d ta gs, as prescribed by th is part , where an employee might be, or would likely be, injur ed if not alert ed to th e ha zar d.
(2) An employer sha ll provide tra ining appropriat e to th e work assignm ent for each employee engaged in activities cover ed by th is part . The followin g ar e exam ples of th e tra ining that ma y be required:
(a) Recogn it ion of ha zar ds, such as, but not limited to, possible ma sonr y wall colla pse ar eas, cran e swing ar eas, floor opening cover s, or tra ffic contr ol ha zar ds.
(b) Tra ffic regulat or tra ining.
(c) Pr oper placement an d removal of signs, signa ls, ta gs, an d barr icades.
(d) Tra ining in how to per form work in proximity to tra ffic to minimize vulnera bility.
R 408 .42222 Resc inded .
R 408 .42223 Traffic cont rol.
Rule 2223 . (1) Tra ffic contr ol devices sha ll be insta lled an d ma inta ined as prescribed in part 6, as revised J anuar y 2001 , of th e 1994 edition of th e Michigan Manua l Of Un iform Tra ffic Contr ol Devices,(MMUTCD) which is adopted in th ese ru les by reference. Part 6 is available for review at th e Michigan Dep artm ent of Consum er an d Industr y Services, Stan dar ds Divisi on, 7150 Harr is Drive, P.O. Box 30643 , Lan sing, Michigan , 48909 , or is available at no cost from an y of th e Michigan Dep artm ent of Tran sportat ion (MDOT ) Regiona l Offices , MDOT Service Cent ers, or MDOT Centra l Offices in Lan sing, Michigan .
(2) An employer sha ll ensur e that all operat ions ha ve rout ine inspe ct ions of tra ffic contr ol element s for a ccep ta ble level s of operat ion. When tra ffic exposur es ar e such that signs, signa ls, or barr icades do not provide th e necess ar y protection on, or adjacent to, a highway or str eet, tra ffic regulat ors or oth er appropriat e tra ffic contr ols sha ll be provided. Modificat ion of tra ffic contr ols, such as additiona l signs or devices, or a chan ge in work operat ions, sha ll be determ ined by a qua lified person who is resp onsible for th e pr oject tra ffic contr ol.
(3) Signa ling directions by tra ffic regulat ors sha ll con form to th e provisions of part 6, as revised J anuar y 2001 , of th e 1994 edition of th e Michigan Manua l of Un iform Tra ffic Contr ol Devices, which is adopted in th ese ru les by reference.
(4) A han d-held paddle sign sha ll ha ve 2 faces an d it sha ll be atta ched to a sta ff of suita ble des ign that will a llow th e ent ire un it to be held an d contr olled by 1 tra ffic regulat or. The bott om of th e sign sha ll be a minimum of 6 feet (1.8 meters) above th e roadway sur face. The sign sha ll be fastened to th e sta ff so that no part of th e lege nd is obscur ed. The port ion of th e sta ff with in th e sign face sha ll mat ch th e sign color s. The sign sha ll not be less than 18 by 18 inches (450 millimeters x 450 millimeters) an d th e lett ers sha ll ha ve a minimum height of 6 inches (150 millimeters). All lett ers an d spacing between lett ers sha ll be as prescribed in part 6, as revised J anuar y 2001 , of th e 1994 edition of th e Michigan Manua l of Un iform Tra ffic Contr ol Devices (MMUTCD) which is adopted in th ese ru les by reference. The lege nd sha ll be optically cent ered horizonta lly on th e sign. One side of th e sign sha ll display a “stop” face an d th e oth er side sha ll display th e mess age “slow”, except that if it is necess ar y for 1 tra ffic regulat or to stop 2 directions of tra ffic at th e sam e t ime, th en a “stop” face sha ll be used on each side of th e sign. The “stop” face sha ll ha ve a red backgroun d with white lett ers an d border. The “slow” face sha ll ha ve an oran ge backgroun d with black lett ers an d border. The sha pe of th e sign sha ll be octa gona l an d th e port ions of th e sign oth er than th e diam ond-sha ped “slow” face sha ll be black. When th e sign paddle is used dur ing hour s of darkn ess , th e red an d white of th e “stop” face an d th e oran ge of th e “slow” face sha ll be reflectorized. Sheet meta l or oth er light semirigid mat erial ma y be used for mount ing th e “stop’ an d “slow” faces.
(5) If signa ling by a tra ffic regulat or is necess ar y on con stru ct ion operat ions that ar e not with in a public right -of-wa y, th en a han d-held paddle sign as specified in subru le (4) of th is ru le sha ll be used .
(6) The paddle sign sha ll be as follows : DETAIL OF PADDLE SIGN
*NOTE: The dimensions shown for th e sign ar e minimum . Pr oport ionat ely lar ger paddle signs ma y be used .
(7) In periods of darkn ess , appropriat e light ing sha ll be used to illum inat e th e tra ffic regulat or an d th e tra ffic regulat or stat ion. The light ing sha ll be as is required in part 6 of th e Michigan Manua l of Un iform Tra ffic Contr ol Devices (MMUTCD) which is adopted by reference in th is ru le. Appropriat e light ing mean s light ing that illum inat es th e tra ffic regulat or so that he or she is visible to on com ing tra ffic an d does not impair eith er th e tra ffic regulat or’s or motorists’ visibili ty due to blinding or sha dowing.
(8) An employer sha ll provide, an d a tra ffic regulat or sha ll wear , a vest, a shirt , or a jacket that is flour escent oran ge, yellow, str ong yellow green, or a com binat ion of th ese color s an d sha ll conta in retr o reflective mat erial that is oran ge, yellow, white, silver, or str ong yellow green. A tra ffic regulat or’s vest, shirt , or jacket sha ll be clear ly visible at 360 degrees thr ough th e full ran ge of body motion day an d night .
(9) An employer sha ll require that th e garm ent is inspected befor e each use for all of th e following:
(a) Wear .
(b) Dama ge.
(c) Fa ding.
(d) Reflectivity.
(e) Oth er deteriorat ion.
Defective garm ent s sha ll be report ed to th e employer an d th e employer sha ll eith er repair or replace th e garm ent .
(10) tra ffic regulat or sha ll also wear head, eye, an d foot protection as prescribed in Constru ct ion Safety Stan dar d Part 6 “Persona l Pr otective Equipment ,” R 408 .40601 et seq. of th e Michigan Administrat ive Code. A copy of th ese ru les ar e available at no cost from th e Michigan Dep artm ent of Consum er an d Industr y Services, Stan dar ds Divisi on, 7150 Harr is Drive, P.O. Box 30643 , Lan sing, Michigan , 48909 , web-site: WWW.C IS .ST AT E .MI .US /BSR /DI VISIONS /STD .
(11) If vehicular tra ffic violat es tra ffic laws an d creat es a ha zar d to employees per form ing con stru ct ion operat ions, th en an employer sha ll notify th e appropriat e law en for cement agencies of th e un it of governm ent exercising auth ority over th e roadway for th e en for cement of applicable speed limits an d oth er tra ffic laws.
R 408 .42224 Ba rri cades for const ruc tio n ope rations on othe r than pub li c ri ght - of-w ay .
Rule 2224 . (1) A barr icade that ha s a high point of not less than 36 inches (900 millimeters) sha ll be provided to direct vehicular tra ffic to protect an employee per form ing con stru ct ion operat ions.
(2) A barr icade sha ll be provided to obstru ct or direct an employee from a ha zar dous ar ea of a con stru ct ion operat ion not oth erwise a ffect ed by an oth er stan dar d.
(3) If an employee is work ing dur ing a period of darkn ess , th en a barr icade sha ll be ma de visible by am bient illum inat ion or by atta ched light ing.
R 408 .42225 P lacement , remova l, re location , and use of tra ffic cont rol devices from a mov ing vehic le ; handho lds .
Rule 2225 . Constru ct ion an d ma int enan ce operat ions from a moving vehicle.
(1) Constru ct ion an d ma int enan ce operat ions that require placement , relocat ion, or removal of pavement mark ings, or tra ffic contr ol devices such as drum s, barr icades, con es, or signs, sha ll provide protection to an employee by an y of th e followin g meth ods:
(a) Use of a seat an d a seat belt.
(b) A stan dar d guar dra il system as prescribed in Constru ct ion Safety Stan dar d Part 45 ‘Fa ll Pr otection,’ R 408 .44501 which adopts C.F.R. §1926 .502 et seq. by reference. A copy of th ese ru les ar e available at no cost from th e Michigan Dep artm ent of Consum er an d Industr y Services, Stan dar ds Divisi on, 7150 Harr is Drive, P.O. Box 30643 , Lan sing, Michigan , 48909 , web-site: WWW.C IS .ST AT E .MI .US /BSR /DI VISIONS /STD .
(c) A guar dra il as described in subdivisi on (b) of th is subru le ma y be modified as follows for th e followin g operat ions as spe cified in para gra phs (i) an d (ii) of th is subdivisi on. These ru les apply only to th e placement , removal, relocat ion, an d use of tra ffic contr ol devices from a moving vehicle, an d do not apply to th e tran sportat ion of an employee or employees out side of th e con stru ct ion influence ar ea (CI A) or from point to point with in th e CIA.
Tran sportat ion of an employee or employees out side of th e con stru ct ion influence (CI A) or from point to point with in th e CIA ar ea sha ll be as required in C.F.R. §1926 .601 (b)(8) an d (b)(9), which is adopted by reference in Constru ct ion Safety Stan dar d Part 13 ‘Mobile Equipment ,’ R 408 .41301 et seq. of th e Michigan Administrat ive Code. A copy of th ese ru les ar e available at no cost from th e Michigan Dep artm ent of Consum er an d Industr y Services, Stan dar ds Divisi on, 7150 Harr is Drive, P.O. Box 30643 , Lan sing, Michigan , 48909 , web-site: WWW.C IS .ST AT E .MI .US /BSR /DI VISIONS /STD .
(i) For cont inu ous moving operat ions, th e top ra il of a guar dra il ma y be removed at th e point of operat ion when a han dhold is provided an d is used an d only dur ing cont inu ous moving operat ions for th e placement , removal, or relocat ion of tra ffic contr ol devices, such as con es, tu bular devices, or pavement mark ings.
(ii) For int erm itt ent stopping operat ions, a section of guar dra il ma y be removed at th e point of operat ion when a han dhold is provided an d is used when int erm itt ent stopping of th e vehicle is required for th e placement , removal, or relocat ion of tra ffic contr ol devices, such as drum s, signs, or pavement mark ings. The han dhold sha ll be used by employees at all t imes when th e vehicle is in motion an d it sha ll be locat ed so that th e employee is positioned a minimum of 48 inches (1.2 meters) in distan ce from th e ar ea from th e ra iling that ha s been removed.
(d) Use of oth er mean s that will provide equivalent fall protection for an employee ma y be used . Such a system sha ll be per forman ce orient ed an d sha ll be des igned so that it does not creat e a great er ha zar d to th e employee.
(2) A han dhold sha ll be orient ed an d a size to promote gripping by wra pping fingers ar oun d not less than 270 degrees (3 sides ) of th e device or place des ignat ed. The han dhold sha ll be capable of with stan ding not less than 200 poun ds of for ce in an y direction an d be free from rough edges , slippe ry sur faces, or ha zar dous pr oject ions. The han dhold sha ll be in place an d ident ified as such befor e employees ar e perm itt ed to per form th eir assigned ta sks while r iding on moving vehicles.
R 408 .42229 Signs gene rally.
Rule 2229 . (1) A sign an d it s fastening device sha ll be free of shar p edges , burr s, splint ers, or oth er shar p pr oject ions that cou ld creat e a ha zar d.
(2) If con ditions warrant th e use of a sign size that is not specified in ta bles 2 to 5, th en th e rat io of th e height of th e ident ifying pan el, such as "DANGER" or "CAUTIO N", to th e width of th e sign sha ll be ma inta ined as prescribed in th e ta bles .
(3) Signs sha ll be removed or cover ed when th e ha zar d addressed by th e sign no longer exists.
R 408 .42230 Lett er sty le and size .
Rule 2230 . (1) A lett er sha ll be block style an d uppe r case for th e top pan el an d uppe r or uppe r an d lower case for th e bott om pan el. Lett ers an d num bers sha ll be legible.
(2) Lett er size sha ll be determ ined by th e length of th e mess age an d th e ma ximum visibili ty an d readability. Table 2 sha ll be used as a guide for th e minimum lett er height at a safe viewi ng distan ce.
(a) The spacing of lett ers an d words sha ll not reduce legibili ty.
(b) The height of a lett er that is more than 5 inches (125 millimeters) high sha ll be increased by an additiona l 1 inch (25 millimeters) for each 35 feet (10.5 meters) of viewi ng distan ce.
(3) Table 2 reads as follows : TABLE 2
MINIMUM HE IGHT OF LETTERS
VIEWING DIST ANCE
In ch es
Milli me te rs
F ee t
Me te rs
5
125
201 – 250
60.3 - 75
4 1/2
113
151 – 200
45.3 - 60
4
100
121 – 150
36.3 - 45
3 1/2
88
106 – 120
31.8 - 36
3
75
91 – 105
27 .3 - 31 .5
2 ½
63
76 – 90
22.8 - 27
2
50
61 – 75
18 .3 - 22 .5
1 ½
38
41 – 60
12.3 - 18
1
25
31 – 40
9.3 - 12
¾
19
21 – 30
6.3 - 9
½
13
10 – 20
3 - 6
¼
6
Less than 10
3
R 408 .42233 Dange r sign .
Rule 2233 . (1) A dan ger sign to alert employees sha ll be used where an imm ediat e ha zar d exists. The sign sha ll be removed when th e ha zar d no longer exists.
(2) The proport ions for a dan ger sign sha ll be not less than th ose prescribed in ta ble 3 an d th e format of figur e 1 sha ll be followed .
(3) A dan ger sign sha ll ha ve th e signa l word "dan ger" in white with in a red oval out lined in white on a black rectan gular backgroun d in th e uppe r pan el. The lower pan el where additiona l wording ma y be used sha ll be black or red lett ers on a white backgroun d as shown in figur e 1.
(4) ) An employee sha ll be instru cted that a dan ger sign indicat es imm ediat e dan ger an d that spe cial precaut ions ar e necess ar y.
TABLE 3 STANDARD PROPORTIO NS FOR DANGER SIGNS
Sign Size
Black Rectan gular Pan el
Red Oval
Wor d Dan ger
Minimum Available Wording
In ch es
Millimeter
In ch es
Millimeter
In ch es
Millimeter
In ch es
Millimeter
In ch es
Millimeter
7 x 10
175 X 250
3 1/4 x 9 3/8
81 X 234
2 7/8 x 8 1/2
72 X 213
1 7/16
36
2 3/4 x 9 3/8
69 X 234
10 x 14
250 X 350
4 5/8 x 13 3/8
116 X 334
4 1/8 x 1 7/8
103 X 297
2 1/16
52
4 1/4 x 13
3/8
106 X 334
14 x 20
350 X 500
6 1/2 x 19 3/8
163 X 484
5 3/4 x 17
144 X 425
2 7/8
72
6 1/4 x 19
3/8
156 X 484
20 x 28
500 X 700
9 1/4 x 27 3/8
231 X 684
8 1/4 x 23
7/8
206 X 597
4 1/8
103
9 1/2 x 27
3/8
238 X 584
10 x 7
250 X 175
2 3/8 x 6 3/8
59 X 159
2 1/8 x 5 7/8
53 X 147
1 1/16
27
6 3/8 x 6 3/8
159 X 159
14 x 10
350 X 250
3 1/4 x 9 3/8
81 X 234
2 7/8 x 8 1/2
72 X 213
1 7/16
36
9 1/2 x 9 3/8
238 X 234
20 x 14
500 X 350
4 5/8 x 13 3/8
116 X 334
4 1/8 x 11
7/8
103 X 297
2 1/16
52
14 x 13 3/8
350 X 334
28 x 20
700 X 500
6 1/2 x 19 3/8
163 X 484
5 3/4 x 17
144 X 425
2 7/8
72
20 1/4 x 19
3/8
506 X 484
R 408 .42234 Caution sign .
Rule 2234 . (1) A caut ion sign sha ll be used to warn of a potent ia l ha zar d or to caut ion against an un safe pra ct ice.
(2) The proport ions for a caut ion sign sha ll be not less than th ose prescribed in ta ble 4 an d th e format of figur e 2 sha ll be followed .
(3) A caut ion sign sha ll ha ve th e signa l word "caut ion" in yellow on a black backgroun d in th e uppe r pan el. The lower pan el where additiona l wording ma y be used sha ll be black lett ers on a yellow backgroun d.
(4)
An
employee sha ll be instru cted that a caut ion sign indicat
es a possible
ha zar d an d that proper precaut ions sha ll be tak en.
TABLE 4
STANDARD PROPORTIO NS FOR CAUTIO N SIGNS
SIGN SIZE
BLACK RECTANGULAR PANE L
WORD “CAUTIO N” HE IGHT OF LETTER
MINIMUM SPACE AVAILABLE FOR SIGN WORD ING BELOW PANE L
HORI ZONTAL PATTERN
In ch es
Millimeter
In ch es
Millimeter
In ch es
Millimeter
In ch es
Millimeter
7 x 10
175 X 250
2 1/4 x 9 3/8
56 X 234
1 5/8
41
3 1/4 x 9 3/8
81 X 234
10 x 14
250 X 350
3 1/4 x 13 3/8
81 X 3 3/4
2 1/4
56
5 1/2 x 13 3/8
138 X 334
14 x 20
350 X 500
3 3/4 x 19 3/8
94 X 484
2 3/4
69
9 x 19 3/8
225 X 484
20 x 28
500 X 700
4 1/4 x 27 3/8
106 X 684
4 1/4
106
14 1/2 x 27 3/8
363 X 684
UP RIG HT PATTERN
10 x 7
250 X 175
1 5/8 x 6 3/8
41 X 159
1 1/8
28
7 x 6 3/8
175 X 159
14 x 10
350 X 250
2 1/4 x 9 3/8
56 X 234
1 5/8
41
10 1/2 x 6 3/8
263 X 159
20 x 14
500 X 350
3 1/4 x 13 3/8
81 X 334
2 1/4
56
15 1/2 x 13 3/8
388 X 334
28 x 20
700 X 500
3 3/4 x 19 3/8
94 X 484
2 3/4
69
24 x 19 3/8
600 X 484
R 408 .42235 Sa fe ty ins truc tio n sign .
Rule 2235 . (1) A safety instru ct ion sign sha ll be used for a genera l instru ct ion or suggestion relat ive to safety measur es.
(2) The proport ions for a safety instru ct ion sign sha ll be not less than th ose prescribed in ta ble 5 an d th e format of figur e 3 sha ll be followed .
(3) A safety instru ct ion sign sha ll ha ve th e signa l word in white on a green backgroun d in th e uppe r pan el. The lower pan el where additiona l wording ma y be used sha ll be black lett ers on a white backgroun d.
TABLE 5
PROPORTIO NS FOR SAFE TY INSTRUCTION SIGNS
SIGN SIZE
GREEN RECTANGULAR PANE L
WORD "THINK " HE IGHT OF LETTERS
MINIMUM SPACE AVAILABLE FOR SIGN WORD ING BELOW PANE L
In ch es
Millimeters
In ch es
Millimeters
In ch es
Millimeters
in ch es
Millimeters
7 x 10
175 X 250
2 ¾ x 9 3/8
69 X 234
1 3/8
34
3 1/2 x 9 3/8
88 X 234
10 x 14
250 X 350
3 ¼ x 13 3/8
81 X 334
2 ¼
56
5 1/2 x 13 3/8
138 X 334
14 x 20
350 X 500
3 ¾ x 19 3/8
94 X 484
2 ¾
69
9 x 19 3/8
225 X 484
20 x 28
500 X 700
4 ¼ x 27 3/8
106 X 684
3 ¼
81
14 1/2 x27 3/8
363 X 684
SIGN SIZE
GREEN PANE L
WORD "BE" HE IGHT OF LETTERS
WORD "CAREFU L" HE IGHT OF LETTERS
In ch es
Millimeters
In ch es
Millimeters
In ch es
Milli-meters
In ch es
Milli-meters
7 x 10
175 X 250
3 3/8 x 9 3/8
84 X 234
1 3/4
42
1 3/16
28
10 x 14
250 X 350
4 ¾ x 13 3/8
119 X 334
1 3/4
42
2 3/16
55
14 x 20
350 X 500
6 ¾ x 19 3/8
169 X 484
2 1/2
63
3 1/8
78
20 x 28
500 X 700
9 ½ x 27 3/8
238 X 684
3 1/2
88
4 3/8
109
MINIMUM SPACE AVAIL ABLE FOR SIGN
WORD ING BELOW PANE L
In ch es
Millimeters
2 1/2 x 9 3/8
63 X 234
4 x 13 3/8
100 X 334
6 x 19 3/8
150 X 484
9 1/4 x 27 3/8
231 X 684
R 408 .42236 Exit sign .
Rule 2236 . An exit sign, when required, sha ll be lett ered in legible red lett ers, not less than 6 inches (150 millimeters) high, on a white backgroun d, an d th e principal str oke of th e lett ers sha ll not be less than 3/4 (19 millimeters) of an inch wide .
R 408 .42237 Di rec tio na l signs .
Rule 2237 . (1) A directiona l arr ow, oth er than a tra ffic contr ol sign, used on a dan ger, caut ion, or safety instru ct iona l sign sha ll be black.
(2) A safety relat ed directiona l sign sha ll ha ve a white arr ow on a black uppe r pan el with th e lower pan el white an d an y lett ers in black.
(3) A directiona l sign sha ll use proport ions prescribed in ta ble 6
Figur e 4
Safety Directiona l Signs
TABLE 6
STANDARD PROPORTIO NS FOR SAFE TY DIR ECTIO NAL SIGNS
SIGN SIZE
BLACK RECTANGULAR PANE L
OVER-ALL LEN GTH
MAXIMUM SPACE FOR SIGN WORD ING BELOW PANE L
In ch es
Millimeters
In ch es
Millimeters
In ch es
Millimeters
In ch es
Millimeters
6 1/2 x 14
163 X 350
3 1/4 x 13 3/8
81 X 334
12 3/8
309
2 1/4 x 13 3/8
56 X 334
9 x 20
225 X 500
4 1/2 x 19 3/8
113 X 484
18 5/8
466
2 3/8 x 19 3/8
59 X 484
12 x 28
300 X 700
6 x 27 3/8
150 X 684
28 3/8
709
4 3/4 x 27 3/8
119 X 684
15 x 36
375 X 900
7 1/2 x 35 3/8
188 X 884
34 5/8
866
5 1/2 x 35 3/8
138 X 884
ARROW HE AD HE IGHT WIDTH
ARROW SHAFT HE IGHT
ARROW TAIL HE IGHT WIDTH
In ch es
Millimeters
In ch es
Millimeters
In ch es
Millimeters
2 3/4 x 3
69 X 75
1 1/8
28
2 3/8 x 3 1/4
59 X 81
3 3/4 x 4 1/8
94 X 103
1 5/8
41
3 1/4 x 4 1/2
81 X 113
5 1/8 x 5 3/8
128 X 134
2 1/8
53
4 3/8 x 6
109 X 150
6 3/8 x 6 7/8
159 X 172
2 3/8
59
5 1/2 x 7 1/2
138 X 188
R 408 .32238 Signs for blasti ng and use of exp losives .
Rule 2238 . Where blasting an d th e use of explosives tak es place, signs sha ll be as prescribed in Constru ct ion Safety Stan dar d Part 27 ‘Blasting And Use of Explosives,’ R 408 .42701 et seq. of The Michigan Administrat ive Code. A copy of th ese ru les ar e available at no cost from th e Michigan Dep artm ent of Consum er And Industr y Services, Stan dar ds Divisi on, 7150 Harr is Drive, P.O. Box 30643 , Lan sing, Michigan , 48909 , web-site: WWW.C IS .ST AT E .MI .US /BSR /DI VISIONS /STD .
R 408 .42241 Accident preven tio n tags gene rally.
Rule 2241 . (1) An appropriat e a ccide nt prevent ion ta g sha ll be used as a temporar y mean s of warn ing an employee of an existing ha zar d, such as defective t ools or equipment . A ta g sha ll not be used in place of an a ccide nt prevent ion sign or con sidered a com plete warn ing meth od.
(2) A ta g sha ll be a ffixe d by str ing, wire, or adhesive .
(3) A ta g sha ll be lar ge enough to attra ct att ent ion to th e ha zar d but not less than 2 3/8 (59 millimeters) by 4 3/4 (119 millimeters) inches.
(4) The signa l word sha ll be in bold type.
R 408 .42243 Signs for s low -mov ing vehic les .
Rule 2243 . (1) A sign as prescribed in th is ru le sha ll be atta ched to th e rear of an y vehicle that , by des ign, moves at 25 miles per hour or less on an y public, privat e, or temporar y road.
(2) The sign sha ll be ent irely visible in daylight an d at night from a distan ce of not less than 600 feet (180 meters).
(3) The sign sha ll be mount ed point up an d sha ll be placed centra lly at th e rear of th e vehicle, un obscur ed, an d at 3 feet (.9 meters) to 5 feet (1.5 meters) above th e groun d measur ed from th e lower edge of th e sign. The sign sha ll be secur ely atta ched to th e vehicle.
SLOW-MOVING VEH ICLE IDEN TIFICATIO N SIGN
