reglab/statecodes huggingface dataset:
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 11 - FIXED AND PORTABLE LADDERS › Section R. 408.41105 - Definitions; S to W

Current through Vol. 24-12, July 15, 2024
Rule 1105.
(1)
					 "Safety feet" means a safety device that is placed on the foot of the side
					 rails of straight, sectional, or extension ladders to reduce the likelihood
					 that the base will slip. Safety feet may be flat pads that are covered with a
					 nonslip material, pointed metal projections, or spur wheels.
(2) "Side-step ladder" means a ladder that
					 requires an employee who is getting off at the top of the ladder to step
					 sideways from the ladder to reach the landing.
(3) "Single-cleat ladder" means a ladder that
					 consists of a pair of parallel side rails that are connected with cleats which
					 are joined to the side rails at regular intervals.
(4) "Single-rail ladder" means a portable
					 ladder that has rungs, cleats, or steps which are mounted on a single rail
					 instead of the normal 2 rails that are used on most other ladders.
(5) "Special-purpose ladder" means a portable
					 ladder that represents either a modification or a combination of design or
					 construction features in 1 or more of the general purpose types of ladders, as
					 defined in
					 R
					 408.41103(5) and (6),
					 R
					 408.41104(5) and (6), and subrules
					 (4) and (6) of this rule, in order to adapt the ladder to special or specific
					 uses.
(6) "Stepladder" means a
					 self-supporting portable ladder that is nonadjustable in length and that has
					 flat steps and a hinged back. A stepladder's size is measured along the front
					 edge of the side rails.
(7) "Steps"
					 means the flat crosspieces of a ladder on which a person may step to ascend or
					 descend.
(8) "Through ladder" means
					 a ladder that requires an employee who is getting off at the top of the ladder
					 to step through the ladder to reach the landing.
(9) "Trestle ladder" means a self-supporting
					 portable ladder which is nonadjustable in length and which consists of 2
					 sections that are hinged at the top to form equal angles with the base. The
					 size of the ladder is designated by the length of the side rails measured along
					 the front edge.
(10) "Well" means a
					 permanent complete enclosure around a fixed ladder that protects a climber.
					 Proper clearance for a well will give the same protection as a cage.
(11) "Worn" means a reduction of the
					 dimension of a wood or non-wood part by more than 10% of its original
					 size.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 11 - FIXED AND PORTABLE LADDERS › Section R. 408.41111 - Ladders

Current through Vol. 24-12, July 15, 2024
Rule 1111.
(1) A
					 manufactured portable wood ladder shall be constructed and maintained as
					 prescribed in the ANSI standard A14.1 "Ladders Wood Safety Requirements," 1990
					 edition, as adopted in
					 R
					 408.41102a.
(2) A manufactured portable metal ladder
					 shall be constructed and maintained as prescribed in the ANSI standard A14.2
					 "Ladders Portable Metal Safety Requirements," 1990 edition, as adopted in
					 R
					 408.41102a.
(3) A manufactured portable plastic ladder
					 shall be constructed and maintained as prescribed in the ANSI standard A14.5
					 "Ladders Portable Reinforced Plastic Safety Requirements," 1982 edition with
					 1985 supplement, as adopted in
					 R
					 408.41102a.
(4) Fixed ladders shall be constructed and
					 maintained as prescribed in the ANSI standard A14.3 "Ladders Fixed Safety
					 Requirements," 1984 edition, as adopted in
					 R
					 408.41102a.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 11 - FIXED AND PORTABLE LADDERS › Section R. 408.41112 - Training requirements

Current through Vol. 24-12, July 15, 2024
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 related to
					 the ladder and shall train each employee in the procedures to be followed to
					 minimize these hazards .
(2) An
					 employer shall ensure that each employee has been trained by a competent person
					 in all of the following areas, as applicable:
(a) The nature of fall hazards in the work
					 area .
(b) The correct procedures
					 for erecting, maintaining, and disassembling the fall protection systems to be
					 used .
(c) The proper construction,
					 use, and placement of, and care in handling, ladders .
(d) The maximum intended load-carrying
					 capacities of ladders that are used .
(e) The rules contained in this part
					 .
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 11 - FIXED AND PORTABLE LADDERS › Section R. 408.41121 - Inspection; faults and defects

Current through Vol. 24-12, July 15, 2024
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 use and after it has fallen or been involved
					 in an accident to determine its condition.
(3) A ladder that has any of the following
					 faults and defects shall be immediately tagged "DANGEROUS - DO NOT USE" and
					 shall be withdrawn from service:
(a) Broken,
					 worn, or missing rungs, cleats, or steps.
(b) Broken or split side rails.
(c) Broken or bent guides or iron
					 spreaders.
(d) Broken or bent
					 locks.
The tag shall be as prescribed in Construction Safety
						Standard Part 22 "Signals, Signs, Tags, and Barricades," as referenced in
						R
						408.41102a.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 11 - FIXED AND PORTABLE LADDERS › Section R. 408.41122 - Use generally

Current through Vol. 24-12, July 15, 2024
Rule 1122.
(1) A
					 ladder shall not be placed in a passageway, doorway, driveway, or any location
					 where it may be displaced, unless it is protected by barricades or guards or is
					 secured to prevent displacement.
(2) A ladder shall be placed on a substantial
					 and stable base unless it is secured to prevent accidental displacement. The
					 area around the top and bottom of the ladder shall be kept clear.
(3) A ladder shall not be used as a brace,
					 slide, guy, gin pole, or gangway or for any other use than that for which it is
					 designed.
(4) An employee shall
					 face the ladder when ascending or descending. Each employee shall use at least
					 1 hand to grasp the ladder when progressing up or down the ladder. An employee
					 shall not carry any object or load that could cause the employee to lose
					 balance and fall.
(5) An employee
					 who is on a ladder shall not overreach or do any pushing or pulling that may
					 cause the ladder to move or topple. If both of an employees shoulders are
					 outside of a side rail, the employee is overreaching.
(6) A ladder shall be located and maintained
					 to prevent an employee from bumping into, or snagging onto, projecting objects
					 while ascending or descending the ladder.
(7) A ladder shall not be loaded beyond its
					 load-carrying capacity.
(8) A
					 ladder shall not be moved, shifted, or extended while occupied by an
					 employee.
(9) Single-rail ladders
					 shall not be used.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 11 - FIXED AND PORTABLE LADDERS › Section R. 408.41126 - Use of stepladders

Current through Vol. 24-12, July 15, 2024
Rule 1126.
(1)
					 An employee shall not use the backside of a stepladder for climbing, unless the
					 stepladder is designed for such use.
(2) Unless the stepladder is equipped with a
					 handrail, the top step and cap shall not be used to stand on.
(3) A stepladder shall not be used as a
					 straight ladder by leaning it against a wall or other support.
(4) A metal spreader or locking device shall
					 be provided on each stepladder to hold the front and back sections in an open
					 position when the ladder is being used. The ladder shall be opened fully and
					 the spreaders shall be locked while in use.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 11 - FIXED AND PORTABLE LADDERS › Section R. 408.41127 - Single and double-cleat ladders generally

Current through Vol. 24-12, July 15, 2024
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 a platform between each
					 ladder that is not supported by the ladders. Ladders used with a platform shall
					 be secured at the top and bottom.
(2) The platform shall be designed to support
					 4 times the intended load. Guardrails and toeboards, as prescribed in
					 Construction Safety Standard Part 45 "Fall Protection," as referenced in
					 R
					 408.41102a, shall be erected on the exposed sides of
					 the platform. Rails shall extend above the top landing at least 36 inches but
					 not more than 42 inches to provide a handhold for mounting and dismounting, and
					 cleats shall be eliminated above the landing level. When 2 or more separate
					 job-built ladders are used with a platform, the ladders shall be completely
					 offset from each other and the minimum horizontal distance between adjacent
					 side rails shall be 6 inches.
(3)
					 Side rails of a job-built ladder shall be continuous.
(4) Each cleat of a job-built ladder shall be
					 a continuous member.
(5) A wood
					 cleat shall be not less than nominal 1-inch by 4-inch construction grade lumber
					 for a cleat less than 20 inches in length and not less than nominal 2-inch by
					 4-inch construction grade lumber for a cleat from 20 inches to 50 inches in
					 length. Knot-free lumber shall be used for cleats.
(6) The cleats shall be uniformly spaced 12
					 inches top to top. A cleat shall be attached to the narrow face of each side
					 rail using 2 10-d nails for nominal 1-inch by 4-inch cleats or 2 16-d nails for
					 2-inch by 4-inch cleats .
(7)
					 Filler blocks shall be used on the rails between cleats. Filler blocks of the
					 same thickness as the cleats shall be inserted between cleats and butted
					 tightly against the underside of each cleat.
(8) Side rails shall not be cut into house
					 cleats.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 11 - FIXED AND PORTABLE LADDERS › Section R. 408.41128 - Single-cleat ladders; width; side rails

Current through Vol. 24-12, July 15, 2024
Rule 1128.
(1)
					 The width of a single-cleat ladder shall be not less than 16 inches or more
					 than 20 inches between rails. Side rails shall be parallel .
(2) Side rails of a single-cleat ladder shall
					 be not less than nominal 2-inch by 4-inch construction grade lumber for ladders
					 less than 16 feet in length and not less than nominal 2-inch by 6-inch
					 construction grade lumber for ladders from 16 feet to 24 feet in length
					 .
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 11 - FIXED AND PORTABLE LADDERS › Section R. 408.41129 - Double-cleat ladders; width; additional rail; side rails

Current through Vol. 24-12, July 15, 2024
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 of the ladder
(3) The side rails and middle rail for a
					 double-cleat ladder shall be not less than nominal 2-inch by 4-inch
					 construction grade lumber for double-cleat ladders less than 12 feet in length
					 and not less than nominal 2-inch by 6-inch construction grade lumber for a
					 double-cleat ladder from 12 feet to 24 feet in length .
(4) The side rails of a double-cleat ladder
					 shall be secured at the bottom and as close as possible to the top to prevent
					 moving or toppling .
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 11 - FIXED AND PORTABLE LADDERS › Section R. 408.41132 - Maintenance

Current through Vol. 24-12, July 15, 2024
Rule 1132.
(1) A
					 ladder shall be maintained free of slip-enhancing hazards and in good working
					 condition.
(2) A ladder shall not
					 be painted with an opaque material. A ladder, particularly one used
					 out-of-doors should be coated with a suitable transparent protective material
					 to retard splintering caused by weathering.
(3) The side rails and legs of a ladder shall
					 be kept free from splinters. The joint between the side rail and step shall be
					 kept tight and metal hardware and fittings secured.
(4) A ladder surface shall be free of
					 puncture or laceration hazards.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 11 - FIXED AND PORTABLE LADDERS › Section R. 408.41133 - Special-purpose ladders

Current through Vol. 24-12, July 15, 2024
Rule 1133.
(1) A
					 special-purpose ladder may be capable of being used as a step ladder, a single
					 or extension ladder, or a trestle ladder.
(2) A special-purpose ladder, when used as
					 any of the types of ladders listed in subrule (1) of this rule, shall meet the
					 requirements of the applicable rules of this part.
(3) A special-purpose ladder may be used by
					 more than 1 employee if specifically designed for that purpose.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 11 - FIXED AND PORTABLE LADDERS › Section R. 408.41140 - Fixed ladders

Current through Vol. 24-12, July 15, 2024
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.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 13 - MOBILE EQUIPMENT › Section R. 408.41301 - Adoption and availability of standards

Current through Vol. 24-12, July 15, 2024
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 these rules:
(a)
												29 CFR
					 1926.600, "Equipment," effective August 9,
					 2010.
(b)
												29 CFR 1926.601,
					 "Motor vehicles," effective December 6, 2012.
(c)
												29 CFR
					 1926.602, "Material handling equipment,"
					 effective December 1, 1998, including
					 29 CFR
					 1910.178, appendix A "Powered industrial
					 trucks (nonmandatory)," effective November 18, 2016.
(d)
												29 CFR
					 1926.603, "Pile driving equipment," effective
					 January 19, 2005.
(e)
												29
					 CFR 1926.604, "Site clearing," effective
					 March 14, 2001.
(f)
												29 CFR
					 1926.605, "Marine operations and equipment,"
					 effective July 22, 1977.
(g)
												29 CFR
					 1926.606, "Definitions applicable to this
					 subpart," effective March 14, 2001.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › Section R. 408.41401 - Scope

Current through Vol. 24-12, July 15, 2024
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 routine maintenance
						of an existing structure; excavation and trenching operations as prescribed by
						Construction Safety Standard Part 9 "Excavation, Trenching and Shoring," which
						is referenced in
						R
						408.41410, or underground electrical transmission and
						distribution lines as prescribed in Construction Safety Standard Part 16 "Power
						Transmission and Distribution," which is referenced in
						R
						408.41410. This part also applies to cut-and-cover
						excavations which are both physically connected to ongoing underground
						construction operations within the scope of this part and covered in such a
						manner as to create conditions characteristic of underground
						construction.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › Section R. 408.41405 - Applicability

Current through Vol. 24-12, July 15, 2024
Rule 1405. These rules apply to auger boring and jacking
						operations when occupied by an employee with the exception of
						R 408.41463.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › Section R. 408.41410 - Adoption of standards by reference

Current through Vol. 24-12, July 15, 2024
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: 866-542-1800 or
					 via the internet at website:
www.ecfr.gov
at no cost as of the time of
					 adoption of these rules:
(a) The provisions
					 of 30 CFR, Mineral Resources Parts 1 to 199 "Mine Safety and Health
					 Administration, Department of Labor," revised July 1, 2000.
(b) The provisions of 42 CFR, Public Health,
					 Part 84 "Approval of Respiratory Protective Devices," revised October 1,
					 2001.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › Section R. 408.41455 - Definitions; A to H

Current through Vol. 24-12, July 15, 2024
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
					 simultaneously installing pipe or other lining where the section of lining is
					 installed at the opening of the excavation and is jacked or otherwise forced
					 toward the advancing face.
(3)
					 "Auger tunnel" means a tunnel that is excavated by use of a continuous flight
					 auger system, with or without a sleeve or other type of liner.
(4) "Bulkhead" means an airtight structure
					 separating the working chamber from free air or from another chamber under a
					 lesser pressure than the working pressure.
(5) "Caisson" means either a generally
					 vertical foundation unit below grade or a chamber placed in the ground or water
					 for excavating earth and in which it is possible for a person to work under air
					 pressure greater than atmospheric pressure to excavate material below water
					 level.
(6) "Cofferdam" means a
					 temporary structure used to control the flow of water and other material during
					 construction operations.
(7)
					 "Competent person" means a person who is experienced and capable of identifying
					 existing and predictable hazards in the surroundings or under working
					 conditions that are hazardous or dangerous to an employee, and who has the
					 authority and knowledge to take prompt corrective measures to eliminate
					 hazards.
(8) "Compressed air" means
					 an environment that has a pressure greater than atmospheric pressure.
(9) "Decanting" means a method used for
					 decompressing under emergency circumstances. In this procedure, the employees
					 are brought to atmospheric pressure with a very high gas tension in the tissues
					 and then immediately recompressed in a second and separate chamber or
					 lock.
(10) "Emergency lock" means a
					 lock designed to hold and permit the quick passage of an entire shift of
					 employees.
(11) "Escape-only
					 respirator" means a respirator intended to be used only for emergency
					 exit.
(12) "High air" means air
					 pressure used to supply power to pneumatic tools and devices.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › Section R. 408.41456 - Definitions; M to W

Current through Vol. 24-12, July 15, 2024
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) "Occupied tunnel" means any tunnel
					 entered by 1 or more employees.
(4)
					 "Pressure" means a force acting on a unit area, usually shown as pounds per
					 square inch (p.s.i.).
(5)
					 "Qualified person" means 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 relating to the subject matter, the work, or the project.
(6) "Safety screen" means an airtight and
					 watertight diaphragm placed vertically across the upper part of a compressed
					 air tunnel between the face and bulkhead in order to restrain sudden flooding
					 of the crown of the tunnel between the safety screen and the bulkhead, thus
					 providing a means of refuge and exit from a flooding or flooded
					 tunnel.
(7) "Shaft" means a
					 vertical or inclined opening excavated below ground level, that is for the
					 purpose of tunnel operations.
(8)
					 "Tunnel" means a generally horizontal excavation or facility more than l4
					 inches in diameter, width, or height and more than 6 feet in length below
					 ground or water. Facilities used for the acquisition of minerals, ores, and
					 fossil fuels, which are commonly known as mines, are excluded from this
					 definition.
(9) "Working chamber"
					 means the space or compartment under air pressure in which the work is being
					 done.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › Section R. 408.41461 - Advance notice of tunnel excavation

Current through Vol. 24-12, July 15, 2024
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 performing
					 the tunnel excavation shall be sent to the Michigan Department of Labor and
					 Economic Opportunity, Construction Safety and Health Division, 530 West Allegan
					 Street, P.O. Box 30645, Lansing, Michigan 48909-8145, in addition to the
					 following civil authorities in the area: hospital, police department, fire
					 department, and sheriff department. The report shall contain all of the
					 following information:
(a) Name of contractor
					 or contractors.
(b) Starting
					 date.
(c) Length of
					 tunnel.
(d) Diameter of
					 cut.
(e) Finished
					 diameter.
(f) Number of
					 shafts.
(g) Depth of
					 shafts.
(h) Location of
					 shafts.
(i) Method of
					 tunneling.
(j) Maximum working
					 pressure in tunnel or shaft.
(k)
					 Type of primary liner.
(l) Number
					 of shifts.
(m) Projected completion
					 date.
(n) Projected maximum work
					 force within tunnel.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › Section R. 408.41462 - Safety generally

Current through Vol. 24-12, July 15, 2024
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, or explosions.
(2) A safe means of egress and access to all
					 work areas shall be provided and maintained free of hazards.
(3) When work is not being performed, access
					 to an underground opening shall be covered, bulkheaded, fenced off, or
					 restricted by gates or doors and appropriately posted.
(4) Any section of tunnel that is not in use
					 shall be barricaded to prevent ingress by an unauthorized employee.
(5) Construction of a trench, manhole, or
					 other opening for use in a tunnel or shaft operation shall be as prescribed in
					 construction safety standard Part 9. Excavation, Trenching, and Shoring and
					 construction safety standard Part 45. Fall Protection, which is referenced in
					 R
					 408.41410.
(6) An area subject to subsidence that is
					 hazardous to an employee shall be fenced and appropriately posted.
(7) Each operation shall have a check-in and
					 check-out system that will provide positive identification of an employee by
					 number or name and will identify the location of each employee who is
					 underground. An accurate record shall be kept on the surface. However, a
					 check-in and check-out system is not required when the construction of
					 underground facilities that are designed for human occupancy has been completed
					 so that the permanent environmental controls are effective and the remaining
					 construction activity will not cause any environmental hazard or structural
					 failure within the facilities.
(8)
					 All employees shall be instructed in the recognition and avoidance of hazards
					 that are associated with all of the following underground construction
					 activities:
(a) Air monitoring.
(b) Ventilation.
(c) Illumination.
(d) Communications.
(e) Flood control.
(f) Mechanical equipment.
(g) Personal protective equipment.
(h) Explosives.
(i) Fire prevention and protection.
(j) Emergency procedures, including
					 evacuation plans and check-in and check-out systems.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › Section R. 408.41464 - Communication system; location; signals

Current through Vol. 24-12, July 15, 2024
Rule 1464.
(1)
					 In a tunnel that is more than 225 feet long, the employer shall provide a
					 communication system at all of the following locations:
(a) The working face.
(b) The top of the shaft.
(c) The bottom of the shaft.
(d) The hoisting station, if
					 provided.
(e) Each 1,000 feet of
					 tunnel.
(f) The office, if
					 provided. A public telephone or other communication system shall be provided or
					 available to each tunnel project to secure outside emergency help.
(g) Hoist operators shall be provided with a
					 closed-circuit voice communication system to each landing station. The system
					 shall have speaker microphones located so that the operator can communicate
					 with individual landing stations during hoist use.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › Section R. 408.41465 - Protective clothing or equipment

Current through Vol. 24-12, July 15, 2024
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.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › Section R. 408.41466 - Electrical requirements

Current through Vol. 24-12, July 15, 2024
Rule 1466.
(1) A
					 power line shall be well separated or insulated from water lines, telephone
					 lines, and air lines.
(2) Lighting
					 circuits shall be located so that the movement of personnel or equipment will
					 not damage the circuits or disrupt service.
(3) Electrical equipment and wiring shall be
					 installed and maintained as prescribed in the provisions of subparts F to J of
					 part 77 of the provisions of 30 C.F.R., Mineral Resources, Parts 1-199 "Mine
					 Safety and Health Administration, Department of Labor," as adopted in
					 R
					 408.41410. The provisions of subparts F to J are
					 adopted with the following amendments:
(a)
					 Article 305-1(a) is amended to read as follows: Temporary electrical power and
					 lighting installations shall be permitted during the period of construction,
					 remodeling, maintenance, repair, or demolition of buildings, structures,
					 equipment, or similar activities which are located at ground level and which
					 are part of facilities used for the construction of tunnels, shafts, and
					 cofferdams.
(b) Article 310-15, is
					 amended to read as follows: The maximum continuous ampacities for copper,
					 aluminum, and copper-clad aluminum conductors shall be as specified in table
					 310-16 to 310-19 and accompanying notes 1 to 12. Power and lighting circuits
					 may be loaded to the maximum design temperatures of the wire or cable
					 insulation under the following conditions:
(i) A means shall be provided to disconnect
					 the load if the feeder cable exceeds design temperature by more than 10% for 1
					 minute.
(ii) Power cable shall have
					 a grounding and a pilot wire that conforms to the Insulated Power Cable
					 Engineers Association (IPCEA) type G grounded cable (G-GC) or
					 equivalent.
(iii) Power cable shall
					 have a loose connector emergency shutdown ability.
(iv) Power cable shall have a ground fault
					 emergency shutdown ability.
(v)
					 Power cable shall have an arc between phases emergency shutdown
					 ability.
(c) Oil filled
					 transformers shall not be used underground unless they are located in a
					 fire-resistant enclosure suitably vented to the outside and surrounded by a
					 dike to retain the contents of the transformer in the event of
					 rupture.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › Section R. 408.41467 - Fire prevention and protection

Current through Vol. 24-12, July 15, 2024
Rule 1467.
(1)
					 The applicable requirements for fire prevention and protection as prescribed in
					 Construction Safety Standard Part 18. "Fire Prevention and Protection," as
					 referenced in
					 R
					 408.41410, shall be complied with in all tunnel and
					 shaft operations.
(2) Smoking and
					 open flames are prohibited. An employer is responsible for collecting all
					 personal sources of ignition, such as matches and lighters, from all persons.
					 Welding and cutting, where required, shall comply with the provisions of
					 subrules (9) to (14) of this rule. A fire watch shall be maintained when hot
					 work is performed.
(3) Not more
					 than a 1-day supply of diesel fuel shall be stored in a tunnel or shaft.
					 Gasoline or liquefied petroleum gas shall not be taken in a tunnel or shaft.
					 Acetylene or methylacetylene propadiene stabilized gas may be used underground
					 solely for welding, cutting, and other hot work and only as prescribed in
					 Construction Safety Standard Part 7. "Welding and Cutting," as referenced in
					 R 408.41410.
(4) The piping of diesel fuel from the
					 surface to an underground location is permitted only if all of the following
					 provisions are complied with:
(a) Diesel fuel
					 is contained at the surface in a tank with a maximum capacity that is not more
					 than the amount of fuel required to supply, for a 24-hour period, the equipment
					 that is serviced by the underground fueling station.
(b) The surface tank is connected to the
					 underground fueling station by an acceptable pipe or hose system that is
					 controlled at the surface by a valve and at the shaft bottom by a hose
					 nozzle.
(c) The pipe is empty at
					 all times, except when transferring diesel fuel from the surface tank to a
					 piece of equipment in use underground.
(d) Hoisting operations in the shaft are
					 suspended during refueling operations if the supply piping in the shaft is not
					 protected from damage.
(e)
					 Acetylene, liquefied petroleum gas, and methylacetylene propadiene stabilized
					 gas may be used underground only for welding, cutting, and other hot work and
					 only in accordance with subrules (9) to (14) of this rule.
(f) Not more than the amount of fuel gas and
					 oxygen cylinders necessary to perform welding, cutting, or other hot work
					 during the next 24-hour period shall be permitted underground.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › TUNNELS AND SHAFTS › Section R. 408.41471 - Ground support; inspections; repairs

Current through Vol. 24-12, July 15, 2024
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 fractured material is encountered, then it shall be scaled or
						protected and supported. The employee conducting the inspections shall be
						protected from loose ground by location, ground support, or equivalent means.
						Suitable protection shall be provided for employees exposed to the hazard of
						loose ground while installing ground support systems. Support sets shall be
						installed so that the bottoms have sufficient anchorage to prevent ground
						pressures from dislodging the support base of the sets. Lateral bracing (collar
						bracing, tie rods, or spreaders) shall be provided between immediately adjacent
						sets to ensure added stability. Damaged or dislodged ground supports that
						create a hazardous condition shall be promptly repaired or replaced. When
						replacing supports, the new supports shall be installed before the damaged
						supports are removed. A shield or other type of support shall be used to
						maintain a safe travel way for employees working in dead-end areas ahead of any
						support replacement operation.
(2)
						A scaling bar shall be in good condition. A blunted or severely worn bar shall
						not be used.
(3) A torque meter and
						a torque wrench shall be available where rock bolts are used for ground
						support. Frequent tests shall be made to determine if the bolts are tight. The
						test frequency shall be determined by rock conditions and distance from
						vibration sources.
(4) A damaged or
						dislodged tunnel support shall be repaired or replaced when structural
						integrity is impaired. A new support shall be installed if possible before
						removing damaged supports.
(5)
						Tunnel supports shall be designed and installed to prevent pressure from
						pushing them inward into the excavation.
(6) Roof supports shall be used where ground
						conditions are such that there could be a ground failure ahead of tunnel
						sets.
(7) A tunnel that is to be
						occupied by employees shall be provided with a steel casing, concrete pipe,
						timber, or other material of required strength to support the surrounding
						earth.
(8) If an employee is
						required to enter a tunnel or an auger boring and jacking operation less than 3
						feet in diameter, then a lifeline for instant rescue shall be securely fastened
						to his or her ankles. Another employee shall be stationed at the tunnel
						entrance to operate the lifeline. In addition, ventilation shall be provided
						with an air line.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › TUNNELS AND SHAFTS › Section R. 408.41472 - Shafts; supports; inspections; lifelines

Current through Vol. 24-12, July 15, 2024
Rule 1472.
(1)
						A shaft that an employee is required to enter shall be provided with steel
						casing, concrete pipe, timber, or other material that is strong enough to
						support the surrounding earth.
(2)
						A shaft that is more than 5 feet in depth shall be braced to support the
						surrounding earth. The bracing shall be provided the full depth of the shaft,
						or, if rock is encountered, to not less than 5 feet into solid rock, and shall
						extend not less than 1 foot above the ground level.
(3) After a blasting operation, the bracing
						shall be inspected. If the bracing is found to be unsafe, then corrections
						shall be made before the shift operations are continued.
(4) A shaft or caisson shall be protected
						with a guardrail system as prescribed in Construction Safety Standard Part 45
						"Fall Protection," as referenced in
						R
						408.41410, or barricaded as prescribed in Construction
						Safety Standard Part 22 "Signals, Signs, Tags, and Barricades," as referenced
						in
						R
						408.41410. A gate opening into the shaft shall be
						provided and shall be closed at all times, except when necessary to enter or
						leave the shaft or caisson.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › TUNNELS AND SHAFTS › Section R. 408.41473 - Drilling; inspection; jumbos

Current through Vol. 24-12, July 15, 2024
Rule 1473.
(1)
						Drilling equipment that is to be used during a shift shall be inspected each
						shift by a qualified employee. Equipment defects affecting safety shall be
						corrected before the equipment is used.
(2) The drilling area shall be inspected for
						hazards before starting the drilling operation.
(3) An employee shall not be allowed on a
						drill mast while the drill is in operation.
(4) When a drill is moved from one area to
						another, drill steel, tools, and other equipment shall be secured, and the mast
						shall be placed in a safe position.
(5) Drills on columns or stiff legs shall be
						anchored firmly before drilling is started and they shall be retightened
						frequently thereafter.
(6) A jumbo
						deck more than 5 feet high shall be provided with guardrails on all open sides
						and on the back platform. A stair or ladder access, wide enough for 2
						employees, shall be provided to a jumbo deck 10 feet or more in
						height.
(7) A jumbo deck, ladders,
						and stairs shall be kept clean to prevent the hazard of slipping and tripping.
						The deck shall be an anti-slip type and the deck shall be secured to prevent
						displacement.
(8) A mechanical
						means shall be provided for lifting drills, roof bolts, mine straps, and other
						unwieldy heavy material to the top deck of a jumbo more than 10 feet in
						height.
(9) Receptacles or racks
						shall be provided for drill steel stored on a jumbo.
(10) When a jumbo is moved, a rider shall not
						be allowed on the jumbo unless the employee is assisting the
						operator.
(11) Jumbo wheels shall
						be chocked while an employee is working on the jumbo.
(12) Before the drilling cycle is started, a
						warning shall be given to employees working under jumbo decks.
(13) Before commencing a drilling cycle, the
						face and lifters shall be examined for misfires. If found, the misfired
						explosive shall be removed before the drilling starts. A lifter shall not be
						drilled through a blasted muck pile.
(14) An air line that is buried in the invert
						shall be identified by signs posted nearby warning all employees.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › TUNNELS AND SHAFTS › Section R. 408.41474 - Blasting

Current through Vol. 24-12, July 15, 2024
Rule 1474.
(1)
						All blasting and explosives handling shall be conducted as prescribed in
						Construction Safety Standard Part 27 "Blasting and Use of Explosives," as
						referenced in
						R
						408.41410.
(2) An employer shall not allow an employee
						to enter a shaft or a tunnel heading after blasting until air quality meets
						minimum requirements.
(3) Blasting
						wire shall be kept clear of electrical lines, pipes, rails, and other
						conductive material, excluding earth, to prevent explosives initiation or
						employee exposure to electric current.
(4) After blasting operations in shafts, a
						competent person shall determine if the walls, ladders, timbers, blocking, or
						wedges have loosened. If so, necessary repairs shall be made before employees
						other than those assigned to make the repairs are allowed in or below the
						affected areas.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › TUNNELS AND SHAFTS › Section R. 408.41475 - Haulage; inspection; braking; riding

Current through Vol. 24-12, July 15, 2024
Rule 1475.
(1)
						Haulage equipment that is to be used during a shift shall be inspected by a
						qualified person before the start of the shift. Known defects that affect the
						safety of employees shall be corrected before the equipment is used.
(2) A powered locomotive or other mobile
						equipment shall be provided with suitable brakes, an audible warning device for
						use by the operator as needed, and lights at both ends.
(3) Powered mobile haulage equipment that is
						subject to falling materials shall be equipped with a cab, canopy, or other
						protective device that is capable of protecting the operator from shifting or
						falling materials. For cabs where glazing is used, the glass shall be safety
						glass, or its equivalent, and shall be maintained and cleaned so that vision is
						not obstructed.
(4) Powered mobile
						equipment shall not be left unattended unless the power is off, all operating
						controls are in the neutral position, and the brakes are set or other
						equivalent precautions are taken to prevent rolling. The operating controls
						shall be designed to automatically return to a neutral position or shall be
						equipped with a deadman control.
(5) Backstops or automatic braking shall be
						installed on an inclined conveyor to prevent the conveyor from running out of
						control and creating a hazard for the employee.
(6) An employee shall not ride on either of
						the following unless specifically designed or adapted for transporting
						employees:
(a) A power-driven chain, belt, or
						bucket conveyor.
(b) Haulage
						equipment. An employee shall not ride haulage equipment unless it is equipped
						with seating for each passenger and protects passengers from being struck,
						crushed, or caught between other equipment or surfaces.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › TUNNELS AND SHAFTS › Section R. 408.41475a - Hoisting unique to underground construction

Current through Vol. 24-12, July 15, 2024
Rule 1475a. Except as modified by this standard,
						  employers shall comply with all of the following:
(a) The requirements of Construction Safety
						and Health Standard Part 10. "Cranes and Derricks," as referenced in
						R 408.41410,
(b) Ensure that material hoists comply with
						Construction Safety and Health Standard Part 10. "Cranes and Derricks," as
						referenced in
						R
						408.41410.
(c) Ensure that personnel hoists comply with
						the personnel hoists requirements of Construction Safety and Health Standard
						Part 10. "Cranes and Derricks," as referenced in
						R
						408.41410.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 14 - TUNNELS, SHAFTS, CAISSONS, AND COFFERDAMS › TUNNELS AND SHAFTS › Section R. 408.41477a - Additional requirements for cranes

Current through Vol. 24-12, July 15, 2024
Rule 1477a. Cranes shall be equipped with a limit
						  switch to prevent overtravel at the boom tip. Limit switches are to be used
						  only to limit travel of loads when operational controls malfunction and shall
						  not be used as a substitute for other operational controls.