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 8 - HANDLING AND STORAGE OF MATERIALS › Section R. 408.40820 - Storage of lumber

Current through Vol. 24-12, July 15, 2024
Rule 820.
(1)
					 Lumber shall be stacked on level and solidly supported sills so as to be
					 self-supporting and stable.
(2) A
					 pile of lumber manually stacked, and a pile of lumber to be manually unstacked,
					 shall not exceed 6 feet in height.
(3) Lumber which is mechanically stacked
					 shall not exceed 10 feet in height. This lumber shall not be rehandled
					 manually, except as prescribed in subrule (2) of this rule.
(4) Used lumber shall have all protruding
					 nails removed or bent into the lumber before stacking.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 8 - HANDLING AND STORAGE OF MATERIALS › Section R. 408.40821 - Storage of material in bins or hoppers

Current through Vol. 24-12, July 15, 2024
Rule 821. A bin or hopper that has a bottom discharge
						shall have sloped sides to allow material to flow freely.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 8 - HANDLING AND STORAGE OF MATERIALS › Section R. 408.40822 - Clearances

Current through Vol. 24-12, July 15, 2024
Rule 822.
(1)
					 Material stored near an electrical distribution or transmission line shall
					 maintain the following clearances:
(a) Line
					 rated 50 kV or less--10 feet plus length of material stored.
(b) Line rated 50 kV or more--10 feet plus
					 0.4 inch for each 1 kV over 50 kV plus length of material stored or 10 feet
					 plus 4 inches for each 10 kV over 50 kV plus length of material
					 stored.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 8 - HANDLING AND STORAGE OF MATERIALS › Section R. 408.40823 - Compressed gas

Current through Vol. 24-12, July 15, 2024
Rule 823.
The handling and storage of all compressed gases, except
						those used for welding and cutting, shall be as prescribed in the Compressed
						Gas Association Standard, P-1--2000, "Safe Handling of Compressed Gases in
						Containers," in
						R
						408.40810.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 8 - HANDLING AND STORAGE OF MATERIALS › Section R. 408.40831 - Disposal of waste materials

Current through Vol. 24-12, July 15, 2024
Rule 831.
(1)
					 The area onto and through which material is to be dropped shall be completely
					 enclosed with barricades not less than 36 inches or more than 42 inches high
					 and not less than 6 feet back from the opening and area receiving the material.
					 Signs warning of the hazard of falling materials shall be posted on the
					 barricades at each level containing the barricades. Removal of signs shall not
					 be permitted in this lower area until debris handling ceases above.
(2) If material is dumped from mechanical
					 equipment or a wheelbarrow, then a toeboard or bumper not less than 4 inches
					 thick x 6 inches high nominal size shall be secured to the floor at each
					 material chute opening.
(3) If the
					 drop is more than 20 feet outside the exterior of the building, then a chute as
					 prescribed in Construction Safety Standard Part 20 "Demolition," as referenced
					 in
					 R
					 408.40810, shall be used, and extend to within 8 feet
					 of the lower level.
(4) Material,
					 barricades, and chutes shall not be removed until material handling ceases
					 above.
(5) All scrap lumber, waste
					 materials, or rubbish shall be removed from the immediate work area as the work
					 progresses.
(6) Disposal of waste
					 material or debris by burning shall comply with local fire
					 regulations.
(7) All solvent waste,
					 oily rags, and flammable liquids shall be kept in fire resistant covered
					 containers until removed from the worksite.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 8 - HANDLING AND STORAGE OF MATERIALS › Section R. 408.40832 - Rigging equipment

Current through Vol. 24-12, July 15, 2024
Rule 832.
(1)
					 Rigging equipment for material handling shall be inspected at the time of
					 installation, before each job, and at the beginning of each shift if in use, by
					 an employee qualified to perform this inspection. Defective rigging equipment
					 shall be removed from service.
(2)
					 If not in use, rigging equipment shall be stored in a manner that is not
					 hazardous for an employee.
(3)
					 Rigging equipment, other than a sling, hoisting line, and alloy steel chain,
					 shall not be loaded in excess of its recommended safe working load, as
					 prescribed in General Industry Safety Standard Part 49 "Slings," as referenced
					 in
					 R
					 408.40810.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 8 - HANDLING AND STORAGE OF MATERIALS › Section R. 408.40833 - Slings

Current through Vol. 24-12, July 15, 2024
Rule 833.
(1)
					 All slings used to store or handle material for construction operations shall
					 meet the requirements of General Industry Safety Standard Part 49 "Slings," as
					 referenced in
					 R
					 408.40810.
(2) Employers shall ensure that rigging
					 equipment complies with all of the following:
(a) Have permanently affixed and legible
					 identification markings as prescribed by the manufacturer that indicate the
					 recommended safe working load.
(b)
					 Not be loaded in excess of its recommended safe working load as prescribed on
					 the identification markings by the manufacturer.
(c) Not be used without affixed, legible
					 identification markings, required by subdivision (a) of this subrule.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 8 - HANDLING AND STORAGE OF MATERIALS › Section R. 408.40834 - Wire ropes

Current through Vol. 24-12, July 15, 2024
Rule 834.
(1)
					 Wire rope shall be taken out of service if any of the following conditions
					 exist:
(a) In running ropes, 6 randomly
					 distributed broken wires in 1 lay or 3 broken wires in 1 strand in 1
					 lay.
(b) Wear of 1/3 the original
					 diameter of outside individual wires. Kinking, crushing, bird-caging, or any
					 other damage resulting in distortion of the rope structure, except for
					 deformation caused by normal methods of attachment to drums, hooks, shackles,
					 or other accessories.
(c) Evidence
					 of any heat damage from any cause.
(d) Reductions from nominal diameter of more
					 than 1/64-inch for diameters up to and including 5/16-inch, 1/32-inch for
					 diameters 3/8-inch to and including 1/2-inch, 3/64-inch for diameters 9/16-inch
					 to and including 3/4-inch, 1/16-inch for diameters 7/8-inch to 1-1/8-inches
					 inclusive, 3/32-inch for diameters 1-1/4 to 1-1/2 inches inclusive.
(e) In standing ropes, more than 2 broken
					 wires in 1 lay in sections beyond end connections or more than 1 broken wire at
					 an end connection.
(f) Wire rope
					 shall not be used if, in any length of 8 diameters, the total number of visible
					 broken wires exceeds 10% of the total number of wires, or if the rope shows
					 other signs of excessive wear, corrosion, or defect.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 8 - HANDLING AND STORAGE OF MATERIALS › Section R. 408.40835 - Natural and synthetic fiber rope; specifics

Current through Vol. 24-12, July 15, 2024
Rule 835.
(1) A
					 natural or synthetic fiber rope used for hoisting, lowering, or pulling shall
					 consist of 1 continuous piece without a knot or splice, except an eye splice at
					 the end of the rope.
(2) An eye
					 splice for manila rope shall contain not less than 3 full tucks, and short
					 splices shall contain not less than 6 full tucks, 3 on each side of the splice
					 center line.
(3) An eye splice for
					 stranded synthetic fiber rope shall contain not less than 4 full tucks, and
					 short splices shall contain not less than 8 full tucks, 4 on each side of the
					 splice center line. An eye splice for other types of synthetic fiber rope shall
					 be made as prescribed by the rope manufacturer.
(4) An eye splice for natural or synthetic
					 fiber rope shall be of a size to provide an interior angle at the splice of not
					 more than 60 degrees when the eye is placed over the load or support.
(5) A natural or synthetic fiber rope eye
					 shall be equipped with a thimble if the eye is placed over or around an object
					 with a sharp corner.
(6) Strand end
					 tails from an eye splice shall not be trimmed flush with the surface of the
					 rope immediately adjacent to the full tucks. This applies to both eye and short
					 splices and all types of fiber rope.
(a)
					 Tails from an eye splice for a fiber rope less than 1-inch in diameter shall
					 project not less than 6 rope diameters beyond the last full tuck.
(b) Tails from the eye splice for fiber rope
					 1-inch or more in diameter shall project not less than 6 inches beyond the last
					 full tuck.
(c) Projecting tails may
					 be tapered and spliced into the body of the rope using not less than 2
					 additional tucks, which shall require a tail length of approximately 6 rope
					 diameters beyond the last full tuck or they may be taped or wired
					 down.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 8 - HANDLING AND STORAGE OF MATERIALS › Section R. 408.40836 - Hooks, shackles, and other accessories

Current through Vol. 24-12, July 15, 2024
Rule 836.
(1) A
					 hook, ring, oblong link, pear-shaped link, welded or mechanical coupling link,
					 or other attachment, when used with alloy steel chain, shall have a rated
					 capacity equal to the chain or rope to which it is attached, and the load shall
					 not exceed the rated load. Shackles and other accessories shall have a rated
					 capacity equal to or greater than the load to which it is attached.
(2) A hook shall be discarded if either of
					 the following applies:
(a) The throat opening
					 is more than 15% greater than the manufactured size.
(b) The hook has more than 10 degrees twist
					 from a vertical center line drawn through the hook center.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 8 - HANDLING AND STORAGE OF MATERIALS › Section R. 408.40837 - Chains

Current through Vol. 24-12, July 15, 2024
Rule 837.
(1)
					 Chains used for material handling shall be made of alloy steel.
(2) A welded alloy steel chain shall have a
					 permanently affixed tag showing the size, grade, rated capacity, and
					 manufacturer's name.
(3) If wear at
					 any point of any chain link is more than that shown in table 2, then the chain
					 shall be repaired or replaced. The repair shall return the chain to its rated
					 capacity.
(4) Employers shall not
					 use alloy steel-chain slings with loads in excess of the rated capacities, such
					 as working load limits, indicated on the sling by permanently affixed and
					 legible identification markings prescribed by the manufacturer.
TABLE 2
MAXIMUM ALLOWABLE WEAR AT ANY POINT OF
								  LINK
Chain Size (inches)
Maximum Allowable Wear (inch)
1/4
3/64
3/8
5/64
1/2
7/64
5/8
9/64
3/4
5/32
7/8
11/64
1
3/16
1-1/8
7/32
1-1/4
1/4
1-3/8
9/32
1-1/2
5/16
1-3/4
11/32
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 8 - HANDLING AND STORAGE OF MATERIALS › Section R. 408.40840 - Shackles and hooks safe working loads

Current through Vol. 24-12, July 15, 2024
Rule 840.
(1)
					 The manufacturers recommendations shall be followed in determining the safe
					 working loads of the various sizes and types of specific and identifiable
					 hooks. All hooks for which manufacturers recommendations are not available
					 shall be tested to twice the intended safe working load before they are
					 initially put into use. The employer shall maintain a record of the dates and
					 results of such tests.
(2)
					 Employers shall not use shackles with loads in excess of the rated capacities,
					 such as working load limits, indicated on the shackle by permanently affixed
					 and legible identification markings prescribed by the manufacturer.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 8 - HANDLING AND STORAGE OF MATERIALS › Section R. 408.40841 - Synthetic webbing (nylon, polyester, and polypropylene)

Current through Vol. 24-12, July 15, 2024
Rule 841.
(1)
					 Employers shall use natural- and synthetic-fiber rope slings that have
					 permanently affixed and legible identification markings that state the rated
					 capacity for the type or types of hitch or hitches used and the angle upon
					 which it is based, type of fiber material, and the number of legs if more than
					 1.
(2) Rated capacity shall not be
					 exceeded.
(3) Synthetic webbing
					 shall be of uniform thickness and width and selvage edges shall not be split
					 from the webbing's width.
(4)
					 Employers shall not use natural- and synthetic-fiber rope slings with loads in
					 excess of the rated capacities, such as working load limits, indicated on the
					 sling by permanently affixed and legible identification markings prescribed by
					 the manufacturer.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40901 - Scope and referenced standards

Current through Vol. 24-12, July 15, 2024
Rule 901.
(1)
					 This part pertains to the digging of excavations and trenches which an employee
					 is required to enter and the supporting systems used on construction
					 operations.
(2) The following
					 Michigan occupational safety and health (MIOSHA) standards are referenced in
					 these rules:
(a) Construction Safety and
					 Health Standard Part 21. "Guarding of Walking and Working Areas,"R
					 408.42101 to
					 R 408.42160.
(b) Construction Safety Standard Part 45.
					 "Fall Protection,"R 408.44501
					 to R 408.44502.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40925 - Definitions A to Q

Current through Vol. 24-12, July 15, 2024
Rule 925.
(1)
					 "Angle of repose" means the maximum permissible slope as determined by table
					 1.
(2) "Benching" means a method of
					 protecting employees from cave-ins by excavating the sides of an excavation to
					 form 1 or a series of horizontal levels or steps, usually with vertical or
					 near-vertical surfaces between levels.
(3) "Braces" or "struts" means the horizontal
					 cross members of a shoring system that bear against the uprights or
					 stringers.
(4) "Cave-in" means the
					 separation of a mass of soil or rock material from the side of an excavation,
					 or the loss of soil from under a trench shield or support system, and its
					 sudden movement into the excavation, either by falling or sliding, in
					 sufficient quantity so that it could entrap, bury, or otherwise injure and
					 immobilize a person.
(5) "Competent
					 person" means an individual who is capable of identifying existing and
					 predictable hazards in the surroundings or working conditions which are
					 unsanitary, hazardous, or dangerous to employees, and who has authorization to
					 take prompt corrective measures to eliminate them.
(6) "Excavation" means any man-made cut,
					 cavity, trench, or depression in the earth's surface, including its sides,
					 walls, or faces, formed by earth removal.
(7) "Hazardous atmosphere" means an
					 atmosphere which by reason of being any of the following, may cause death,
					 illness, or injury:
(a) Explosive.
(b) Flammable.
(c) Poisonous.
(d) Corrosive.
(e) Oxidizing.
(f) Irritating.
(g) Oxygen deficient.
(h) Toxic.
(i) Otherwise harmful.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40926 - Definitions; S

Current through Vol. 24-12, July 15, 2024
Rule 926.
(1)
					 "Sheeting" means the members of a shoring system that retain the earth in
					 position and in turn are supported by other members of the shoring
					 system.
(2) "Sheet piling" means a
					 continuous row of timber or steel piles driven in close contact to provide a
					 tight wall to resist lateral pressure of water, adjacent earth, or other
					 materials.
(3) "Shield" or "shield
					 system" means a structure that is able to withstand the forces imposed on it by
					 a cave-in and thereby protect employees within the structure. Shields can be
					 permanent structures or can be designed to be portable and moved along as work
					 progresses. Additionally, shields can be either premanufactured or job-built in
					 accordance with R 408.40932,
					 R 408.40942,
					 R 408.40943,
					 R 408.40945, and
					 R 408.40953. Shields used in
					 trenches are usually referred to as trench boxes or trench shields.
(4) "Shoring" or "shoring system" means a
					 structure such as a metal hydraulic, mechanical, or timber shoring system that
					 supports the sides of an excavation and which is designed to prevent
					 cave-ins.
(5) "Sides" sometimes
					 called faces or walls, mean the vertical or inclined earth surfaces formed as a
					 result of excavation work.
(6)
					 "Slope" means the acute angle formed by the side of a trench or excavation and
					 the horizontal plane.
(7) "Soil"
					 means any of the following:
(a) "Clay" means
					 a very fine textured soil that derives its resistance to displacement from
					 cohesion and may be:
(i) "Soft clay" means a
					 clay-type soil that has an unconfined strength of less than 1.0 ton per square
					 foot.
(ii) "Medium clay" or
					 "plastic" means a clay-type soil that has a minimum unconfined strength of 1.0
					 ton per square foot.
(iii) "Firm
					 soil" means a clay-type soil that is resistant to forces causing rupture or
					 displacement. A firm clay has a minimum unconfined strength of 1.5 tons per
					 square foot.
(iv) "Stiff clay"
					 means a clay-type soil that is very resistant to forces causing rupture or
					 displacement. A stiff clay has a minimum unconfined strength of 2.5 tons per
					 square foot.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40927 - Definitions; T, U

Current through Vol. 24-12, July 15, 2024
Rule 927.
(1)
					 "Tabulated data" means tables and charts approved by a registered professional
					 engineer and used to design and construct a protective system.
(2) "Toe of slope" means the point at which
					 the side of an excavation intersects the lowest level of the
					 excavation.
(3) "Trench" means an
					 excavation having a depth greater than its width measured at the
					 bottom.
(4) "Trench jack" means a
					 screw or hydraulic jack used as a brace in a trench shoring system.
(5) "Trench shield," sometimes called a
					 trench box, means a trench shoring system composed of steel plates and bracing,
					 welded or bolted together, which can be moved along as work
					 progresses.
(6) "Uprights" mean the
					 vertical members of a trench shoring system.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40931 - Locating utility lines

Current through Vol. 24-12, July 15, 2024
Rule 931.
(1) An
					 employer shall not excavate in a street, highway, public place, a private
					 easement of a public utility, or near the location of a public utility facility
					 owned, maintained, or installed on a customer's premises, without having first
					 ascertained the location of all underground facilities of a public utility in
					 the proposed area of excavation.
(2) Upon receiving the information from the
					 public utility, an employer shall exercise reasonable care when working in
					 close proximity to the underground facilities of any public utility. If the
					 facilities are to be exposed, or are likely to be exposed, only hand digging
					 shall be employed in such circumstances and such support, as may be reasonably
					 necessary for protection of the facilities, shall be provided in and near the
					 construction area.
(3) When any
					 contact with, or damage to, any pipe, cable, or its protective coating, or any
					 other underground facility of a public utility occurs, the public utility shall
					 be notified immediately by the employer responsible for operations causing the
					 damage. If an energized electrical cable is severed, an energized conductor is
					 exposed, or dangerous fluids or gases are escaping from a broken line, the
					 employer shall evacuate the employees from the immediate area while awaiting
					 the arrival of the public utility personnel.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40932 - Excavation; consideration of soil types; water; slide hazards

Current through Vol. 24-12, July 15, 2024
Rule 932.
(1) If
					 different textured soils are encountered in the side of an excavation, each
					 soil type of the excavation shall be cut to the proper angle of repose, except
					 that the slope shall not steepen between the toe of the slope and the ground
					 level where soft clay or running soil is encountered in the lower
					 cut.
(2) An employee shall not work
					 in an excavation in which there is accumulated water or in which water is
					 accumulating unless precautions have been taken to protect employees against
					 the hazards posed by water accumulation. The precautions necessary to protect
					 employees adequately vary with each situation, but may include special support
					 or shield systems to protect from cave-ins, water removal to control the level
					 of accumulating water, or the use of a safety harness and lifeline.
(3) If water is controlled or prevented from
					 accumulating by the use of water removal equipment, the water removal equipment
					 and operation shall be monitored by a competent person or a monitoring system
					 to ensure that the equipment is properly operated.
(4) An ongoing inspection of an excavation or
					 trench shall be made by a competent person. After every rainstorm or other
					 hazard-producing occurrence, an inspection shall be made by a competent person
					 for evidence of possible slides or cave-ins. Where these conditions are found,
					 all work shall cease until additional precautions, such as additional shoring
					 or reducing the slope, have been accomplished.
(5) When installed forms, walls, or similar
					 structures create a trench between the form, wall, or structure and the side of
					 the excavation, an employer shall comply with the provisions of
					 R 408.40941 to
					 R 408.40944.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40933 - Excavation; obstructions; retaining materials; egress; guarding; heavy equipment

Current through Vol. 24-12, July 15, 2024
Rule 933.
(1) A
					 tree, boulder, rock fragment, or other obstruction whose movement could cause
					 injury to an employee shall be removed or supported.
(2) An excavation that an employee is
					 required to enter shall have excavated and other material stored and retained
					 not less than 2 feet from the excavation edge.
(3) When mobile equipment is utilized or
					 permitted adjacent to an excavation where the operator's vision is restricted,
					 stop logs or barricades shall be utilized or a signal person shall be
					 used.
(4) An excavation 48 or more
					 inches in depth and occupied by an employee shall be provided with either a
					 ladder extending not less than 3 feet above the top as a means of access or
					 with a ramp meeting the requirements of subrule (5) of this rule. Lateral
					 travel along the wall of a trench to a ladder or other means of egress shall
					 not exceed 25 feet.
(5) An earth
					 ramp may be used in place of a ladder if it meets all of the following
					 requirements:
(a) The ramp material shall be
					 stable.
(b) The sides of the
					 excavation above the ramp shall be maintained to the angle of repose or sheeted
					 or shored along the means of egress.
(c) The degree of angle of the ramp shall not
					 be more than 45 degrees.
(d)
					 Vertical height between the floor of the trench and the toe of the ramp shall
					 not exceed 30 inches.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40934 - Hazardous atmospheres; testing and controls

Current through Vol. 24-12, July 15, 2024
Rule 934. To prevent exposure to harmful levels of
						atmospheric contaminants and to assure acceptable atmospheric conditions, all
						of the following requirements shall apply:
(a) Where an oxygen deficiency (an atmosphere
					 that contains less than 19.5% oxygen) or a hazardous atmosphere exists, such as
					 in excavations in areas where hazardous substances are stored nearby, the
					 atmosphere in the excavation shall be tested before employees enter excavations
					 that are more than 4 feet (1.22 m) deep.
(b) Precautions shall be taken to prevent
					 employee exposure to atmospheres that contain less than 19.5% oxygen and any
					 other hazardous atmosphere. These precautions include providing proper
					 respiratory protection or ventilation in accordance with the requirements of
					 this part.
(c) Precautions shall be
					 taken, such as providing ventilation, to prevent employee exposure to an
					 atmosphere that contains a concentration of a flammable gas in excess of 20% of
					 the lower flammable limit of the gas.
(d) When controls are used that are intended
					 to reduce the level of atmospheric contaminants to acceptable levels, testing
					 shall be conducted as often as necessary to ensure that the atmosphere remains
					 safe.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40941 - Excavation; angle of repose

Current through Vol. 24-12, July 15, 2024
Rule 941.
(1)
					 The side of an excavation more than 5 feet deep shall be sloped as prescribed
					 in table 1, unless supported as prescribed in this part.
(2) An excavation less than 5 feet in depth
					 shall also be effectively protected when examination of the ground indicates
					 hazardous earth movement may be expected.
TABLE 1
MAXIMUM ALLOWABLE ANGLE OF REPOSE FOR THE SIDE OF AN
						EXCAVATION IN EXCESS OF 5' DEPTH
Click
						Here To View Image
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40942 - Supporting systems; angle of repose; tie backs; sheeting; additional bracing

Current through Vol. 24-12, July 15, 2024
Rule 942.
(1)
					 The angle of repose and the design of the supporting system for a side of an
					 excavation shall be based on the evaluation of all of the following factors:
(a) Depth of cut and type of soil.
(b) Possible variation in the water content
					 of the material while the excavation is open.
(c) Anticipated changes in the material due
					 to exposure to air, sun, water, or freezing temperatures.
(d) Load imposed by structures, equipment,
					 overlying material, or stored material.
(e) Vibration from traffic, equipment, or
					 blasting.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40943 - Additional requirements for trench support systems

Current through Vol. 24-12, July 15, 2024
Rule 943.
(1)
					 Members of support systems shall be securely connected together to prevent
					 sliding, falling, kickouts, or other predictable failure.
(2) The backfilling and the removal of a
					 support system for a trench shall progress together from the bottom of the
					 trench. In unstable or running soil, the jacks and braces shall be removed from
					 above the trench after employees have cleared the trench.
(3) The excavation of material to a level
					 that is not more than 2 feet, .61 m, below the bottom of the members of a
					 support system shall be permitted, but only if the system is designed to resist
					 the forces calculated for the full depth of the trench and if there are no
					 indications, while the trench is open, of a possible loss of soil from behind
					 or below the bottom of the support system.
(4) The installation of a support system
					 shall be closely coordinated with the excavation of trenches.
(5) Support systems shall be installed and
					 removed in a manner that protects employees from cave-ins, structural
					 collapses, or from being struck by members of the support system.
(6) Individual members of support systems
					 shall not be subjected to loads exceeding those which those members were
					 designed to withstand.
(7) Before
					 temporary removal of individual members begins, additional precautions shall be
					 taken to ensure the safety of employees, such as installing other structural
					 members to carry the loads imposed on the support system.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40944 - Benching and sloping

Current through Vol. 24-12, July 15, 2024
Rule 944.
(1)
					 The angle of repose shall be flattened when an excavation has water conditions,
					 silty materials, loose boulders, or areas where erosion, deep frost action, or
					 slide planes appear.
(2) When
					 benching the side of an excavation, the vertical rise shall not be more than 5
					 feet and the step back shall extend at least to the angle of repose as required
					 by table 1.
(3) When benching a
					 side of a trench, the height of the lower bench shall not be more than the
					 lesser of 5 feet or width of the trench measured at the bottom.
(4) An employee shall not be permitted to
					 work on sloped or benched excavations at levels above another employee, except
					 when an employee at the lower level is protected from the hazard of falling,
					 rolling, or sliding material or equipment.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40945 - Trenching boxes and shields

Current through Vol. 24-12, July 15, 2024
Rule 945.
(1)
					 Portable trench boxes or sliding trench shields may be used for the protection
					 of personnel in place of a shoring system or sloping. Where such trench boxes
					 or shields are used, they shall be designed, constructed, and maintained in a
					 manner that provides protection equal to or greater than the sheeting or
					 shoring required for the trench.
(2) The use of benching in conjunction with a
					 portable trench box is permitted when the toe of the trench box is not more
					 than 2 feet above the trench bottom, but only if the trench box is designed to
					 resist the forces calculated for the full depth of the trench and if there are
					 no indications, while the trench is open, of a possible cave-in below the
					 bottom of the trench box.
(3) An
					 employee shall not be allowed in shields when shields are being installed,
					 removed, or moved vertically.
(4)
					 Shield systems shall not be subjected to loads exceeding those which the system
					 was designed to withstand.
(5)
					 Shields shall be installed in a manner to restrict lateral or other hazardous
					 movement of the shield in the event of the application of sudden lateral
					 loads.
(6) Employees shall be
					 protected from the hazard of cave-ins when entering or exiting the areas
					 protected by shields.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40951 - Walkways, sidewalks, roadways

Current through Vol. 24-12, July 15, 2024
Rule 951.
(1)
					 Sidewalks, pavements, and appurtenant structure shall not be undermined unless
					 a support system or another method of protection is provided to protect
					 employees from the possible collapse of such structures.
(2) If an employee or equipment is required
					 or permitted to cross a trench or ditch, a walkway, runway, ramp, or bridge
					 shall be provided and shall have a designed capacity of not less than 3 times
					 the imposed load. A guardrail prescribed by the provisions of Construction
					 Safety and Health Standard Part 21. Guarding of Walking and Working Areas,
					 R 408.421 to
					 R 408.42160 and Construction Safety
					 Standard Part 45. Fall Protection,
					 R 408.42101 and
					 R 408.44501, shall be
					 provided.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 9 - EXCAVATION, TRENCHING, AND SHORING › Section R. 408.40953 - Adjacent structures; protection; design; inspection of shoring, bracing, and underpinning

Current through Vol. 24-12, July 15, 2024
Rule 953.
(1) A
					 structure that is adjacent to an excavation or trench below the level of the
					 base or footing of any foundation or retaining wall shall be protected against
					 settlement, lateral movement, undermining, or washout.
(2) Before the excavation begins, the design
					 of the protection used shall be set forth by a qualified person who is
					 knowledgeable in the subject area.
(3) The shoring, bracing, and underpinning
					 shall be inspected daily or more often, as conditions warrant, by a competent
					 person.
(4) Where the stability of
					 adjoining buildings, walls, or other structures is endangered by excavation
					 operations, support systems such as shoring, bracing, or underpinning shall be
					 provided to ensure the stability of such structures for the protection of
					 employees.
(5) Excavation below the
					 level of the base or footing of any foundation or retaining wall that could be
					 reasonably expected to pose a hazard to employees shall not be permitted except
					 when 1 of the following applies:
(a) A support
					 system, such as underpinning, is provided to ensure the safety of employees and
					 the stability of the structure.
(b)
					 The excavation is in stable rock.
(c) A registered professional engineer has
					 approved the determination that the structure is sufficiently removed from the
					 excavation so as to be unaffected by the excavation activity.
(d) A registered professional engineer has
					 approved the determination that such excavation work will not pose a hazard to
					 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 91 - PROCESS SAFETY MANAGEMENT OF HIGHLY HAZARDOUS CHEMICALS › Section R. 408.49101 - Scope

Current through Vol. 24-12, July 15, 2024
Rule 9101.
(1)
					 This standard applies to the manufacturing of explosives and pyrotechnics.
					 These rules do not apply to the sale and use, such as public displays, of
					 pyrotechnics, commonly known as fireworks, or to the use of explosives in the
					 form prescribed in the official United States pharmacopeia.
(2) The manufacture of explosives, as defined
					 in General Industry Safety Standard Part 55 "Explosives and Blasting Agents,"
					 as referenced in
					 R
					 408.49102, shall also be in compliance with the
					 requirements contained in the provisions of these rules.
(3) The manufacture of pyrotechnics as
					 defined in General Industry Safety Standard Part 55 "Explosives and Blasting
					 Agents," as referenced in
					 R
					 408.49102, shall be in compliance with the provisions
					 of these rules.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 91 - PROCESS SAFETY MANAGEMENT OF HIGHLY HAZARDOUS CHEMICALS › Section R. 408.49102 - Adoption of standards by reference

Current through Vol. 24-12, July 15, 2024
Rule 9102.
(1)
					 The following Federal Occupational Safety and Health Administration (OSHA)
					 regulations are adopted by reference in these rules.
(a)
												29 C.F.R.
					 §1926.64 "Process safety management of
					 highly hazardous chemicals," effective March 26, 2012.
(b)
												29 C.F.R.
					 §1926.64 Appendix A "List of highly
					 hazardous chemicals, toxics and reactives (mandatory)," effective June 30,
					 1993.
Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › Construction Safety and Health Standard › Part 91 - PROCESS SAFETY MANAGEMENT OF HIGHLY HAZARDOUS CHEMICALS › Section R. 408.49103 - MIOSHA referenced standards

Current through Vol. 24-12, July 15, 2024
Rule 3.
The following Michigan occupational safety and health
						(MIOSHA) standards are referenced in these rules. Up to 5 copies of these
						standards may be obtained at no charge from the Michigan Department of
						Licensing and Regulatory Affairs, MIOSHA Regulatory Services Section, 530 West
						Allegan Street, P.O. Box 30643, Lansing, Michigan, 48909-8143 or via the
						internet at website:
www.michigan.gov/mioshastandards
.
						For quantities greater than 5, the cost, as of the time of adoption of these
						rules, is 4 cents per page.
(a)
					 Construction Safety Standard Part 42 "Hazard Communication,"
					 R
					 408.44201 to
					 R 408.44203.
(b) General Industry Safety Standard Part 92
					 "Hazard Communication,"
					 R
					 408.19201 to
					 R 408.19203.
(c) Occupational Health Standard Part 430
					 "Hazard Communication,"
					 R
					 325.77001 to
					 R 325.77003.
(d) General Industry Safety Standard Part 55
					 "Explosives and Blasting Agents,"
					 R
					 408.15501.
(e) Occupational Health Standard Part 432
					 "Hazardous Waste Operations and Emergency Response,"
					 R
					 325.52101 to
					 R
					 325.52137.
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. 408.41101 - Scope

Current through Vol. 24-12, July 15, 2024
Rule 1101. This part establishes minimum requirements for
						the construction, care, and training in the use of portable and fixed ladders
						for construction, alteration, or repair operations .
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. 408.41102a - Adopted and referenced standards

Current through Vol. 24-12, July 15, 2024
Rule 1102a.
(1)
					 The following American National Standard Institute (ANSI) standards are adopted
					 by reference:
(a) ANSI standard A14.1
					 "Ladders - Wood Safety Requirements," 1990 edition. Cost: $36.00.
(b) ANSI standard A14.2 "Ladders - Portable
					 Metal - Safety Requirements," 1990 edition. Cost: $41.00.
(c) ANSI standard A14.3 "Ladders - Fixed -
					 Safety Requirements," 1984 edition. Cost: $25.00.
(d) ANSI standard A14.5 "Ladders - Portable
					 Reinforced Plastic - Safety Requirements," 1982 edition with 1985 supplement.
					 Cost: $42.00.
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. 408.41103 - Definitions; B to I

Current through Vol. 24-12, July 15, 2024
Rule 1103.
(1)
					 "Brand" means marking by burning with a hot iron .
(2) "Cage," "cage guard," or "basket guard"
					 means an enclosure that is fastened to the side rails of a fixed ladder or to
					 the structure to encircle the climbing space of a ladder for the safety of a
					 climber .
(3) "Cleats" means a
					 ladder's crosspieces of rectangular cross section which are placed on edge and
					 on which a person may step to ascend or descend .
(4) "Double-cleat ladder" means a ladder that
					 is similar to a single-cleat ladder, but is wider and has an additional rail in
					 the center that allows simultaneous 2-way traffic
(5) "Equivalent" means alternative designs,
					 materials, or methods that will provide an equal or greater degree of safety
					 for employees .
(6) "Extension
					 ladder" means a non-self-supporting portable ladder that is adjustable in
					 length. An extension ladder consists of 2 or more sections traveling in guides
					 or brackets arranged to permit adjustment of the ladder's length. An extension
					 ladder's size is designated by the sum of the lengths of the sections measured
					 along the side rails .
(7)
					 "Extension trestle ladder" means a self-supporting portable ladder which is
					 adjustable in length, which consists of a trestle ladder base and a vertically
					 adjustable single ladder, and which has suitable means for locking the ladders
					 together. The size is designated by the length of the rail of the trestle
					 ladder base .
(8) "Fixed ladder"
					 means a ladder that is permanently attached to a structure, building, or
					 equipment .
(9) "Grab bar" means a
					 handhold that is placed adjacent to, or as an extension above, a ladder for the
					 purpose of providing access beyond the limits of the ladder .
(10) "Individual rung ladder" means a fixed
					 ladder that has each rung individually attached to a structure, building, or
					 equipment .
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. 408.41104 - Definitions; J to R

Current through Vol. 24-12, July 15, 2024
Rule 1104.
(1)
					 "Job-built ladder" means a ladder, other than a manufactured ladder, that is
					 usually built at the jobsite .
(2)
					 "Ladder" means an appliance that usually consists of 2 side rails which are
					 joined at regular intervals by crosspieces which are called steps, rungs, or
					 cleats and on which a person may step to ascend or descend .
(3) "Ladder safety device" means a device,
					 other than a cage or well, that is designed to eliminate or reduce the
					 possibility of accidental falls .
(4) "Lower levels" means those levels to
					 which an employee can fall from a ladder. Such areas include ground levels,
					 floors, ramps, runways, excavations, pits, water, and similar surfaces. The
					 term does not include the surface from which the employee falls .
(5) "Manufactured ladder" means a
					 commercially made ladder .
(6)
					 "Maximum intended load" means the total load of all employees, equipment,
					 tools, materials, transmitted loads, and other loads that are anticipated to be
					 applied to a ladder compartment at any one time .
(7) "Pitch" means the included angle which is
					 between the horizontal and the ladder and which is measured on the opposite
					 side of the ladder from the climbing side .
(8) "Platform ladder" means a self-supporting
					 type of fixed size stepladder that has a platform provided at the working
					 level. The size is determined by the distance along the front rail from the
					 platform to the base of the ladder .
(9) "Portable ladder" means a ladder which is
					 not permanently fixed in place and which may be used at various locations
					 .
(10) "Rail ladder" means a fixed
					 ladder which consists of side rails that are joined at regular intervals by
					 rungs or cleats and which is fastened along its entire length or in sections to
					 a building, structure, or equipment .
(11) "Rungs" means a ladder's crosspieces of
					 circular or oval cross section on which a person may step to ascend or descend
					 .