Michigan Administrative Code

R 408.41112 Training requirements . Rule 1112. (1) The employer shall provide a training program for each employee who uses a ladder. The program shall enable each employee to recognize hazards Page 5 Courtesy of Michigan Administrative Rules related to the ladder and shall train…

R 408.41113 General requirements. Rule 1113. (1) A ladder shall be provided at all personnel points of access if there is a break in elevation of 19 inches (48 cm) or more and if a ramp, runway, sloped embankment, stairway, or personnel hoist is not provided. (2) When a building …

R 408.41121 Inspection; faults and defects. Rule 1121. (1) A ladder, as prescribed in this part, shall be used to provide safe access to all elevations, unless other means, such as steps, stairs, ramps, runways, or elevators, are provided. (2) A ladder shall be inspected before u…

R 408.41124 Portable ladders. Rule 1124. (1) A portable ladder must be used at such a pitch that the horizontal projected distance from the top support to the base is not more than 1/4 of the vertical distance between these points. (2) A portable ladder in use shall be equipped w…

R 408.41127 Single and double-cleat ladders generally. Rule 1127. (1) A job-built ladder shall not be more than 24 feet in length. If the length of a required job-built ladder would be more than the maximum length, 2 or more separate ladders shall be used and shall be offset with…

R 408.41129 Double-cleat ladders; width; additional rail; side rails . Rule 1129. (1) The width between outside rails of a double-cleat ladder shall be not less than 38 inches or more than 46 inches . (2) A double-cleat ladder shall have an additional rail located at the center o…

R 408.41140 Fixed ladders. Rule 1140. A fixed ladder must be as prescribed in General Industry Safety and Health Standard Part 2. “Walking-Working Surfaces,” as referenced in R 408.41102a. History: 1990 AACS; 2013 AACS; 2014 AACS; 2019 AACS.

R 408.41201 Scope, adoption, and availability of standards. Rule 1201. (1) These rules apply to scaffolds and scaffold platforms used in construction operations. The equipment may be commercially manufactured or job-built. (2) These rules do not apply to crane or derrick suspende…

R 408.41210 Construction and capacity generally. Rule 1210. (1) A scaffold shall be designed, constructed, erected, and used pursuant to the provisions of these rules, 29 CFR 1926.451 and 29 CFR 1926.452, as adopted by reference in R 408.41201. A scaffold shall be designed by a q…

R 408.41211 Access to scaffold platforms. Rule 1211. (1) Access to a scaffold platform shall be provided by 1 or more of the following: (a) A ladder that conforms to Construction Safety Standard Part 11. “Fixed and Portable Ladders,” as referenced in R 408.41201. (b) Hook-on or a…

R 408.41213 Guardrails; fall arrest devices. Rule 1213. (1) A guardrail shall be installed on any open side or end of a scaffold work platform that is 10 feet (3.1 meters) or more above the floor or ground, except for any of the following: (a) A boatswain's chair. (b) A catenary …

R 408.41214 Hoisting machines generally. Rule 1214. (1) A hoisting machine shall carry a label of an approved nationally recognized testing laboratory, such as underwriters laboratories or factory mutual engineering corporation, which states that the machine is approved for use o…

R 408.41216 Manually powered hoisting machines. Rule 1216. (1) A manually powered hoisting device shall be equipped with a positive locking device. (2) A manually powered machine shall be designed to prevent free- spooling of the cable drum. History: 1981 AACS.

R 408.41217 Planking and scaffold platforms generally. Rule 1217. (1) If wood planks are used for a work platform, then the planks shall be scaffold-grade lumber that has a minimum of 1,500 pounds per square inch fiber stress value. The planks shall be not less than 2 inches by 1…

R 408.41218 Plywood scaffold platforms. Rule 1218. (1) If plywood is used as a work platform, the plywood shall be supported by 2- by 10-inch planks. The planks shall support 2 parallel edges of the plywood and shall also be spaced not more than 24 inches center to center. (2) Th…

R 408.41221 Stilts. Rule 1221. (1) A stilt shall be inspected for damage, wear, and corrosion. A defective stilt, including the pins and straps, shall be repaired or replaced before being placed in use. (2) Stilts shall be used only if all of the following conditions exist: (a) F…

R 408.41222 Wood pole scaffolds. Rule 1222. (1) Where a pole of a wood pole scaffold is spliced, the ends shall be squared and the upper section shall rest squarely on the lower section. Wood splice plates shall be fastened on not less than 2 adjacent sides, shall be not less tha…

R 408.41223 Tube and coupler scaffolds. Rule 1223. (1) A tube and coupler scaffold shall have all posts, bearers, runners, and bracing of not less than a nominal 2-inch (1.90 inches outside dimension) steel tubing or equivalent. (2) The material used for couplers shall be of a st…

R 408.41227 Pump jack scaffolds. Rule 1227. (1) Pump jack brackets, braces, and accessories shall be fabricated from metal plates and angles. Each bracket shall have 2 positive gripping mechanisms to prevent any failure or slippage. (2) A pole shall comply with both of the follow…

R 408.41231 Adjustable multipoint suspension scaffolds. Rule 1231. (1) Only wire rope shall be used for suspending an adjustable multipoint suspension scaffold. (2) The steel shackles or clevises with which the wire ropes are attached to the outrigger beams shall be placed direct…

R 408.41232 Multipoint suspended scaffold. Rule 1232. (1) A multipoint suspended scaffold shall be suspended from structural components that are capable of supporting 4 times the maximum intended load. (2) A multipoint suspended scaffold shall be light- or medium-duty scaffold on…

R 408.41233 Two-point adjustable suspension scaffold; swing stage scaffold. Rule 1233. (1) A 2-point adjustable suspension scaffold, also known as a swing stage scaffold platform, shall not be less than 20 inches nor more than 36 inches wide overall. The platform shall be securel…

R 408.41234 Multilevel suspension scaffolds. Rule 1234. (1) A multilevel suspension scaffold shall have a separate fall prevention device that allows a drop of not more than 12 inches installed at each support point connected with a line to the scaffold. (2) The device shall be a…

R 408.41236 Needle beam scaffolds. Rule 1236. (1) A needle beam scaffold shall not be altered or moved while in use. (2) The scaffold planking shall be secured against displacement. Cleats are not an adequate means of attachment. (3) Ropes or hangers shall be used for supports, e…

R 408.41237 Boatswain's chair. Rule 1237. (1) Two 5/8-inch, first-quality manila rope slings or synthetic rope of equivalent strength shall be reeved through the 4 seat holes so as to cross each other on the underside. Where an employee is using a heat or spark-producing process,…

R 408.41238 Float scaffolds. Rule 1238. (1) A float scaffold shall be constructed of not less than 3/4-inch exterior plywood or equivalent material. The platform shall be not more than 3 by 6 feet in size, and the ends of the platform shall project 6 inches beyond the outer edge …

R 408.41241 Mobile scaffolds. Rule 1241. (1) When a freestanding mobile scaffold is used, the height shall not be more than 4 times the minimum base dimension. (2) Outriggers, when used, may be considered as part of the base dimension. The outriggers shall be installed on both si…

R 408.41245 Operator training. Rule 1245. An employer shall ensure that an employee has been trained before the employee's assignment as an operator of a rough terrain forklift truck that is used to elevate employees. An employee shall be trained in all of the following areas: (a…

R 408.41251 Outrigger scaffolds. Rule 1251. (1) The inboard end of an outrigger beam measured from the fulcrum point to anchorage point shall be not less than 1 1/2 times the outboard end in length. Page 22 Courtesy of Michigan Administrative Rules The beams shall rest on edge, t…

R 408.41253 Roofing brackets and crawling boards. Rule 1253. (1) A roofing bracket shall be installed in a manner to maintain a level working surface. (2) In addition to the pointed metal projections, the brackets shall be secured in place by nailing. When it is impractical to na…

R 408.41254 Carpenter's bracket scaffold. Rule 1254. (1) Each bracket, except those for wooden bracket-form scaffolds, shall be attached to the supporting formwork or structure by means of 1 or more of the following: (a) Nails. (b) A metal stud attachment device. (c) Welding, hoo…

R 408.41255 Form Scaffolds. Rule 1255. Metal brackets that are an integral part of the form shall be bolted or welded to the form. A folding-type bracket shall be secured by bolts or locking pins when in the extended position. Clip-on hook-on brackets may be used if the form wale…

R 408.41256 Ladder jack scaffolds. Rule 1256. (1) A ladder jack scaffold shall be used only for light duty on type I manufactured ladders at heights not more than 20 feet from the ground or floor level. The ladder shall be used as prescribed in Construction Safety Standard Part 1…

R 408.41261 Wire rope. Rule 1261. (1) A wire rope shall be inspected for defects by a competent person before each work shift and after every occurrence that could affect a rope's integrity. A rope shall be replaced if any of the following conditions exist: (a) Physical damage th…

R 408.41264 Window jack scaffolds. Rule 1264. (1) A window jack scaffold shall be used as a work platform for not more than 1 employee and only for the purpose of working at the window opening through which the jack is placed. (2) A window jack shall not be used to support planks…

R 408.41301 Adoption and availability of standards. Rule 1301. (1) The following federal Occupational Safety and Health Administration (OSHA) regulations, in 29 CFR part 1926, subpart O, “Motor Vehicles, Mechanized Equipment, and Marine Operations,” are adopted by reference in th…

R 408.41401 Scope. Rule 1401. This part applies to the construction, modification, and major repair of tunnels, shafts, caissons, chambers, passageways, cofferdams, any other aspect of tunnel construction, and the use and maintenance of equipment. This part does not apply to rout…

R 408.41405 Applicability. Rule 1405. These rules apply to auger boring and jacking operations when occupied by an employee with the exception of R 408.41463. History: 2003 AACS; 2019 AACS.

R 408.41410 Adoption of standards by reference. Rule 1410. (1) The following standards are adopted by reference in these rules and are available from the U.S. Government Printing Office Bookstore, 710 North Capitol Street N.W., Washington, DC, at the toll-free telephone number: 8…

R 408.41455 Definitions; A to H. Rule 1455. (1) "Atmospheric pressure" means the pressure of air at sea level, usually 14.7 p.s.i.a. (1 atmosphere) or zero p.s.i.g. (2) “Auger boring and jacking” means the mechanical removal of soil by use of a rotating auger and cutting head and…

R 408.41456 Definitions; M to W. Rule 1456. (1) "Man lock" means a chamber through which employees pass from 1 air pressure environment into another. (2) "Materials lock" means a chamber through which materials and equipment pass from 1 air pressure environment into another. (3) …

R 408.41461 Advance notice of tunnel excavation. Rule 1461. (1) Before the start of a pressurized tunnel being constructed, modified, or repaired, that is 24 inches or more in diameter, height, or width, and that will be occupied by an employee, a report prepared by the employer …

R 408.41462 Safety generally. Rule 1462. (1) The employer shall inform oncoming shifts of any hazardous occurrences or conditions that have affected or might affect employee safety, including liberation of gas, equipment failures, earth or rock slides, cave-ins, floodings, fires,…

R 408.41463 Emergency provisions; plans; equipment; rescue crews. Rule 1463. (1) The employer shall develop a plan to evacuate a tunnel in an emergency and the procedures to carry out the plan shall be made known to the employees and to the rescue team. (2) An employer shall ensu…

R 408.41465 Protective clothing or equipment. Rule 1465. An employee working in a wet shaft, tunnel, or caisson shall wear safety toe rubber boots which have flat gripper-type soles and which are provided by the employer, at no expense to the employee. History: 1979 AC; 1982 AACS…

R 408.41466 Electrical requirements. Rule 1466. (1) A power line shall be well separated or insulated from water lines, telephone lines, and air lines. Page 9 Courtesy of Michigan Administrative Rules (2) Lighting circuits shall be located so that the movement of personnel or equ…

R 408.41471 Ground support; inspections; repairs. Rule 1471. (1) A qualified employee shall inspect the roof, face, and walls of portals, work areas, and haulage ways, or travel-ways at the start of each shift and frequently thereafter as needed. If loose soil or rock or fracture…