Washington Administrative Code

[Order 73-5, § 296-24-240, filed 5/9/73 and Order 73-4, § 296-24-240, filed 5/7/73.]

Accessory. A secondary part or assembly of parts which contributes to the overall function and usefulness of a machine.Angle indicator (boom). An accessory which measures the angle of the boom to the horizontal.ANSI. The American National Standards Institute.Appointed. Assigned s…

(1) Application. This section applies to crawler cranes, locomotive cranes, wheel mounted cranes of both truck and self-propelled wheel type, and any variations thereof which retain the same fundamental characteristics. This section includes only cranes of the above types, which …

(1) Load ratings—Where stability governs lifting performance.(a) The margin of stability for determination of load ratings, with booms of stipulated lengths at stipulated working radii for the various types of crane mountings is established by taking a percentage of the loads whi…

(1) Regular inspection. Inspection procedure for cranes in regular service is divided into two general classifications based upon the intervals at which inspection should be performed. The intervals in turn are dependent upon the nature of the critical components of the crane and…

(1) Operational tests.(a) In addition to prototype tests and quality-control measures, the user of each new production crane must require that it be tested and related data supplied by the manufacturer to the extent necessary to assure compliance with the operational requirements…

(1) You must correct any unsafe conditions disclosed by the inspection requirements of this section before operation of the crane is resumed. Adjustments and repairs must be done only by designated personnel.(2) You must not operate the crane until all guards have been reinstalle…

(1) Running ropes. You must perform a thorough inspection of all ropes in use at least once a month and keep a full written, dated, and signed report of rope condition on file where readily available. All inspections must be performed by an appointed or authorized person. You mus…

(1) Size of load.(a) You must not load any crane beyond the rated load, except for test purposes as provided in WAC 296-24-24009.(b) When loads which are limited by structural competence rather than by stability are to be handled, you must ascertain that the weight of the load ha…

(1) Rail clamps. You must ensure that rail clamps are not used as a means of restraining tipping of a locomotive crane.(2) Ballast or counterweight. You must ensure that cranes are not operated without the full amount of any ballast or counterweight in place as specified by the m…

(1) For operations near overhead electric lines see chapter 296-24 WAC Part L.(2) Boom guards. Cage-type boom guards, insulating links, or proximity warning devices may be used on cranes, but the use of such devices must not operate to alter the requirements of (1) of this sectio…

[Order 73-5, § 296-24-245, filed 5/9/73 and Order 73-4, § 296-24-245, filed 5/7/73.]

A-frame derrick. A derrick in which the boom is hinged from a cross member between the bottom ends of two upright members spread apart at the lower ends and joined at the top; the boom point secured to the junction of the side members, and the side members are braced or guyed fro…

(1) Application. This section applies to guy, stiffleg, basket, breast, gin pole, Chicago boom and A-frame derricks of the stationary type, capable of handling loads at variable reaches and powered by hoists through systems of rope reeving, used to perform lifting hook work, sing…

(1) Rated load marking. You must provide a substantial, durable, and clearly legible rating chart with each derrick and securely affixed where it is visible to personnel responsible for the safe operation of the equipment for permanently installed derricks with fixed lengths of b…

(1) Inspection classification.(a) Prior to initial use you must inspect all new and altered derricks to insure compliance with the provisions of these standards.(b) Inspection procedure for derricks in regular service is divided into two general classifications based upon the int…

(1) Operational tests. Prior to initial use you must test all new and altered derricks to ensure compliance with this section including the following functions:(a) Load hoisting and lowering.(b) Boom up and down.(c) Swing.(d) Operation of clutches and brakes of hoist.(2) Anchorag…

(1) Preventive maintenance. You must establish a preventive maintenance program based on the derrick manufacturer's recommendations.(2) Maintenance procedure.(a) Before adjustments and repairs are started on a derrick you must take the following precautions:(i) You must arrange t…

(1) Running ropes. You must make a thorough inspection of all ropes in use at least once a month and a full written, dated, and signed report of rope condition kept on file where readily available. You must carefully note any deterioration, resulting in appreciable loss of origin…

You must ensure that derrick operation is directed only by the individual specifically designated for that purpose.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 15-24-100, § 296-24-24515, filed 12/1/15, effective 1/5/16; Order 73-5, § 296-24-24515,…

(1) Size of load.(a) You must not load any derrick beyond the rated load.(b) When loads approach the maximum rating of the derrick, you must ascertain that the weight of the load has been determined within plus or minus 10% before it is lifted.(2) Attaching the load.(a) You must …

(1) Guards.(a) You must ensure that exposed moving parts, such as gears, ropes, setscrews, projecting keys, chains, chain sprockets, and reciprocating components, which constitute a hazard under normal operating conditions are guarded.(b) You must ensure that guards are securely …

(1) You must ensure that all timbers for "A" frames are of correct size, length, and condition to sustain the maximum contemplated loads.(2) You must ensure that "A" frame timbers are braced with two spreaders spaced one-quarter the length of the "A" frame from each end. Cross br…

[Order 73-5, § 296-24-294, filed 5/9/73 and Order 73-4, § 296-24-294, filed 5/7/73.]

(1) Safe loads. Whenever used in connection with work, employment, occupations or uses to which these standards are applicable, you must not subject wire rope to loads in excess of 1/5th the breaking load as given in the schedule of the cable manufacturer. Except as required in s…

(1) Quality. Whenever hemp rope is used it must be first grade long fiber Manila hemp rope.(2) Strength. You must ensure that rope is not used to support loads in excess of those given in table for hemp and Manila rope.(3) Lashed. You must ensure that supporting ropes are double …

(1) Inspection. You must inspect all rope slings thoroughly and regularly at intervals of not more than one month, and when not in use, must be stored in a dry place.(2) Pads. You must protect rope slings with pads or blocks when wrapped around sharp edges of structural shapes, c…

You must ensure that guy wires and ropes are of sufficient strength to carry the load imposed upon them and that they are securely fastened in place.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 15-24-100, § 296-24-29407, filed 12/1/15, effective 1…

Wherever rope is permanently fastened by a single wrap to a metal object less in diameter or shortest measurement than three times the diameter of the rope, you must insert a galvanized thimble (of size intended for the rope) between the object and the loop of the rope.[Statutory…

You must carefully inspect blocks and falls before being used. You must ensure that blocks are of substantial construction and maintained in good condition while in use. You must ensure that blocks fit the sizes of ropes they carry and do not chafe or abrade the ropes running thr…

(1) You must discard any three foot length of chain if at any time it is found to have stretched 1/3rd the length of a link.(2) You must not place bolts or nails between two links to shorten chains.(3) You must not splice broken chains by inserting a bolt between two links with t…

This section applies to slings used in conjunction with other material handling equipment for the movement of material by hoisting, in employments covered by this chapter. The types of slings covered are those made from alloy steel chain, wire rope, metal mesh, natural or synthet…

Angle of loading. The inclination of a leg or branch of a sling measured from the horizontal or vertical plane as shown in Fig. D-5: Provided, That an angle of loading of five degrees or less from the vertical may be considered a vertical angle of loading.Basket hitch. A sling co…

Whenever any sling is used, you must observe the following practices:(1) You must not use slings that are damaged or defective.(2) You must ensure that slings are not shortened with knots or bolts or other makeshift devices.(3) You must ensure that sling legs are not kinked.(4) E…

Each day before being used, you must ensure that the sling and all fastenings and attachments are inspected for damage or defects by a competent person designated by the employer. Additional inspections must be performed during sling use, where service conditions warrant. You mus…

(1) Sling identification. You must ensure that alloy steel chain slings have permanently affixed durable identification stating size, grade, rated capacity and reach.(2) Attachments.(a) You must ensure that hooks, rings, oblong links, pear shaped links, welded or mechanical coupl…

(1) Sling use. You must use only wire rope slings that have permanently affixed and legible identification markings as prescribed by the manufacturer, and that indicate the recommended safe working load for the type(s) of hitch(es) used, the angle upon which it is based, and the …

(1) Sling marking. You must ensure that each metal mesh has permanently affixed to it a durable marking that states the rated capacity for vertical basket hitch and choker hitch loadings.(2) Handles. You must ensure that handles have a rated capacity at least equal to the metal f…

(1) Sling use.(a) You must use natural and synthetic fiber rope slings that have permanently affixed and legible identification markings stating the rated capacity for the type(s) of hitch(es) used and the angle upon which it is based, type of fiber material, and the number of le…

(1) Sling identification. You must mark or code each sling to show the rated capacities for each type of hitch and type of synthetic web material.(2) Webbing. You must ensure that synthetic webbing is of uniform thickness and width and selvage edges are not split from the webbing…

[Order 73-5, § 296-24-295, filed 5/9/73 and Order 73-4, § 296-24-295, filed 5/7/73.]

You must determine that compressed gas cylinders under your control are in a safe condition to the extent that this can be determined by visual inspection. You must conduct visual and other inspections as prescribed in the hazardous materials regulations of the department of tran…

You must ensure that the in-plant handling, storage, and utilization of all compressed gases in cylinders, portable tanks, rail tankcars, or motor vehicle cargo tanks is in accordance with Compressed Gas Association Pamphlet P-1-1965.[Statutory Authority: RCW 49.17.010, 49.17.040…

You must ensure that compressed gas cylinders, portable tanks, and cargo tanks have pressure relief devices installed and maintained in accordance with Compressed Gas Association Pamphlets S-1.1-1963 and 1965 addenda and S-1.2-1963.[Statutory Authority: RCW 49.17.010, 49.17.040, …

[Order 73-5, § 296-24-310, filed 5/9/73 and Order 73-4, § 296-24-310, filed 5/7/73.]

You must ensure that the in-plant transfer, handling, storage, and use of acetylene in cylinders comply with the provisions of CGA Pamphlet G-1-2009 (Acetylene) (Compressed Gas Association, Inc., 12th ed., 2009).[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17…

(1) You must comply with Chapter 9 (Acetylene Piping) of NFPA 51A-2006 (Standard for Acetylene Charging Plants) (National Fire Protection Association, 2006 ed., 2006).(2) When employers can demonstrate that the facilities, equipment, structures, or installations used to generate …

(1) You must ensure that facilities, equipment, structures, or installations used to generate acetylene or to charge (fill) acetylene cylinders comply with the provisions of NFPA 51A-2006 (Standard for Acetylene Charging Plants) (National Fire Protection Association, 2006 ed., 20…

[Order 73-5, § 296-24-315, filed 5/9/73 and Order 73-4, § 296-24-315, filed 5/7/73.]

(1) Definitions as used in this section.Approved. Unless otherwise indicated, listed or approved by a nationally recognized testing laboratory. Refer to federal regulation 29 C.F.R. 1910.7 for definition of nationally recognized testing laboratory.ASME. American Society of Mechan…