Washington Administrative Code

(1) WAC 296-62-076 applies to all occupational exposures to MDA, Chemical Abstracts Service Registry No. 101-77-9, except as provided in subsections (2) through (7) of this section.(2) Except as provided in subsection (8) of this section and WAC 296-62-07609(5), this section does…

For the purpose of WAC 296-62-076, the following definitions shall apply:Action level. A concentration of airborne MDA of 5 ppb as an 8-hour time-weighted average.Authorized person. Any person specifically authorized by the employer whose duties require the person to enter a regu…

The employer must ensure that no employee is exposed to an airborne concentration of MDA in excess of ten parts per billion (10 ppb) as an 8-hour time-weighted average or a STEL of 100 ppb.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 19-01-094, § …

(1) Written plan.(a) A written plan for emergency situations must be developed for each workplace where there is a possibility of an emergency. Appropriate portions of the plan must be implemented in the event of an emergency.(b) The plan must specifically provide that employees …

(1) General.(a) Determinations of employee exposure must be made from breathing zone air samples that are representative of each employee's exposure to airborne MDA over an eight-hour period. Determination of employee exposure to the STEL must be made from breathing zone air samp…

(1) Establishment.(a) Airborne exposures. The employer must establish regulated areas where airborne concentrations of MDA exceed or can reasonably be expected to exceed, the permissible exposure limits.(b) Dermal exposures. Where employees are subject to dermal exposure to MDA t…

(1) Engineering controls and work practices.(a) The employer must institute engineering controls and work practices to reduce and maintain employee exposure to MDA at or below the PELs except to the extent that the employer can establish that these controls are not feasible or wh…

(1) General. For employees who use respirators required by this section, the employer must provide each employee an appropriate respirator that complies with the requirements of this subsection. Respirators must be used during:(a) Periods necessary to install or implement feasibl…

(1) Provision and use. Where employees are subject to dermal exposure to MDA, where liquids containing MDA can be splashed into the eyes, or where airborne concentrations of MDA are in excess of the PEL, the employer must provide, at no cost to the employee, and ensure that the e…

(1) Change rooms.(a) The employer must provide clean change rooms for employees, who must wear protective clothing, or who must use protective equipment because of their exposure to MDA.(b) Change rooms must be equipped with separate storage for protective clothing and equipment …

(1) Hazard communication - General.(a) Chemical manufacturers, importers, distributors, and employers must comply with all requirements of the Hazard Communication Standard (HCS), WAC 296-901-140 for MDA.(b) In classifying the hazards of MDA at least the following hazards are to …

(1) All surfaces must be maintained as free as practicable of visible accumulations of MDA.(2) The employer must institute a program for detecting MDA leaks, spills, and discharges, including regular visual inspections of operations involving liquid or solid MDA.(3) All leaks mus…

(1) General.(a) The employer must make available a medical surveillance program for employees exposed to MDA:(i) Employees exposed at or above the action level for thirty or more days per year;(ii) Employees who are subject to dermal exposure to MDA for fifteen or more days per y…

Temporary medical removal of an employee.(1) Temporary removal resulting from occupational exposure. The employee must be removed from work environments in which exposure to MDA is at or above the action level or where dermal exposure to MDA may occur, following an initial examin…

(1) Provisions of medical removal protection benefits. The employer must provide to an employee up to six months of medical removal protection benefits on each occasion that an employee is removed from exposure to MDA or otherwise limited pursuant to this section.(2) Definition o…

(1) Monitoring data for exempted employers.(a) Where as a result of the initial monitoring the processing, use, or handling of products made from or containing MDA are exempted from other requirements of this section under WAC 296-62-07601(2), the employer must establish and main…

(1) Employee observation. The employer must provide affected employees, or their designated representatives, an opportunity to observe the measuring or monitoring of employee exposure to MDA conducted pursuant to WAC 296-62-07609.(2) Observation procedures. When observation of th…

The information contained in Appendices A, B, C, and D of WAC 296-62-076 is not intended by itself, to create any additional obligations not otherwise imposed by this standard nor detract from any existing obligation.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and …

(1) Substance identification.(a) Substance: Methylenedianiline (MDA).(b) Permissible exposure:(i) Airborne: Ten parts per billion parts of air (10 ppb), time-weighted average (TWA) for an eight-hour workday and an action level of five parts per billion parts of air (5 ppb).(ii) D…

(1) Identification.(a) Substance identification. Synonyms: CAS No. 101-77-9. 4,4'-methylenedianiline; 4,4'-methylenebisaniline; methylenedianiline; dianilinomethane.(b) Formula: C13H14N2.(2) Physical data.(a) Appearance and odor: White to tan solid; amine odor.(b) Molecular weigh…

(1) Route of entry:Inhalation; skin absorption; ingestion. MDA can be inhaled, absorbed through the skin, or ingested.(2) Toxicology:MDA is a suspect carcinogen in humans. There are several reports of liver disease in humans and animals resulting from acute exposure to MDA. A wel…

Measurements taken for the purpose of determining employee exposure to MDA are best taken so that the representative average eight-hour exposure may be determined from a single eight-hour sample or two four-hour samples. Short-time interval samples (or grab samples) may also be u…

[Statutory Authority: RCW 49.17.050(2) and 49.17.040. WSR 87-10-008 (Order 87-06), § 296-62-077, filed 4/27/87.]

(1) WAC 296-62-07701 through 296-62-07753 applies to all occupational exposures to asbestos in all industries covered by chapter 49.17 RCW, Washington Industrial Safety and Health Act and chapter 49.26 RCW, Health and safety—Asbestos.(2) This part applies to construction work as …

For the purpose of WAC 296-62-07701 through 296-62-07753:Accredited inspector. Any person meeting the accreditation requirements of the Federal Toxic Substance Control Act, Section 206(a)(1) and (3). 15 U.S.C. 2646(a)(1) and (3).Aggressive method. Removal or disturbance of buildi…

(1) Time weighted average (TWA). The employer must ensure that no employee is exposed to an airborne concentration of asbestos in excess of 0.1 fiber per cubic centimeter (0.1 f/cc) of air as an eight-hour time-weighted average (TWA) as determined by the method prescribed in Appe…

(1) On multiemployer worksites, an employer performing work requiring the establishment of a regulated area must inform other employers on the site of the nature of the employer's work with asbestos and/or PACM, of the existence of and requirements pertaining to regulated areas, …

(1) General monitoring criteria.(a) Each employer who has a workplace or work operation where exposure monitoring is required under this part must perform monitoring to determine accurately the airborne concentrations of asbestos to which employees may be exposed.(b) Determinatio…

(1) General. The employer must establish a regulated area in work areas where airborne concentrations of asbestos exceed or can reasonably be expected to exceed the permissible exposure limits prescribed in WAC 296-62-07705. All Class I, II and III asbestos work must be conducted…

(1) Methods of compliance, the following engineering controls and work practices of this section must be used for construction work defined in WAC 296-155-012 and for all ship repair defined in WAC 296-304-010.(2) Engineering controls and work practices for all operations covered…

(1) Engineering controls and work practices.(a) The employer must institute engineering controls and work practices to reduce and maintain employee exposure to or below the permissible exposure limits prescribed in WAC 296-62-07705, except to the extent that such controls are not…

(1) General. For employees who use respirators required by WAC 296-62-077 through 296-62-07747, the employer must provide each employee an appropriate respirator that complies with the requirements of this section. Respirators must be used during:(a) Periods necessary to install …

(1) Provision and use. If an employee is exposed to asbestos above the permissible exposure limits, or where the possibility of eye irritation exists, or for which a required negative exposure assessment is not produced and for any employee performing Class I operations, the empl…

(1) Change rooms.(a) The employer must provide clean change rooms for employees required to work in regulated areas or required by WAC 296-62-07717(1) to wear protective clothing.Exception:In lieu of the change area requirement specified in this subsection, the employer may permi…

(1)(a) Communication of hazards to employees - Introduction. This section applies to the communication of information concerning asbestos hazards in general industry to facilitate compliance with this standard. Asbestos exposure in general industry occurs in a wide variety of ind…

(1) Certification.(a) Only certified asbestos workers may work on an asbestos project as required in WAC 296-65-010 and 296-65-030.(b) Only certified asbestos supervisors may supervise asbestos abatement projects as required in WAC 296-65-012 and 296-65-030.(c) In cases where cer…

(1) All surfaces must be maintained as free as practicable of accumulations of dusts and waste containing asbestos.(2) All spills and sudden releases of material containing asbestos must be cleaned up as soon as possible.(3) Surfaces contaminated with asbestos may not be cleaned …

(1) General.(a) Employees covered. The employer must institute a medical surveillance program for all employees who are or will be exposed to airborne concentrations of fibers of asbestos at or above the permissible exposure limits. Exception.Employers in the construction or ship…

(1) Exposure measurements.(a) The employer must keep an accurate record of all measurements taken to monitor employee exposure to asbestos as prescribed in WAC 296-62-07709.(b) This record must include at least the following information:(i) Name of employer;(ii) Name of person co…

(1) General. For all construction and shipyard work covered by this standard, the employer must designate a competent person, having the qualifications and authorities for ensuring worker safety and health as required by chapter 296-155 WAC.(2) Required inspections by the compete…

(1) Appendices A, D, E, and F to this part are incorporated as part of this section and the contents of these appendices are mandatory.(2) Appendices B, G, H, I, J and K to this part are informational and are not intended to create any additional obligations not otherwise imposed…

This mandatory appendix specifies the procedure for analyzing air samples for asbestos, tremolite, anthophyllite, and actinolite and specifies quality control procedures that must be implemented by laboratories performing the analysis. The sampling and analytical methods describe…

AirMatrix:WISHA Permissible Exposure Limits: Time Weighted Average0.1 fiber/cc Excursion Level (30 minutes)1.0 fiber/ccCollection Procedure:A known volume of air is drawn through a 25-mm diameter cassette containing a mixed-cellulose ester filter. The cassette must be equipped wi…

This mandatory appendix contains the medical questionnaires that must be administered to all employees who are exposed to asbestos, tremolite, anthophyllite, and actinolite, or a combination of these minerals above the permissible exposure limit (0.1 f/cc), and who will therefore…

(1) Chest roentgenograms must be interpreted and classified in accordance with a professionally accepted classification system and recorded on an interpretation form following the format of the CDC/NIOSH (M) 2.8 form. As a minimum, the content within the bold lines of this form (…

This mandatory appendix specifies engineering controls and work practices that must be implemented by the employer during automotive brake and clutch inspection, disassembly, repair, and assembly operations. Proper use of these engineering controls and work practices will reduce …

(1) Substance identification.(a) Substance: "Asbestos" is the name of a class of magnesium-silicate minerals that occur in fibrous form. Minerals that are included in this group are chrysotile, crocidolite, amosite, tremolite asbestos, anthophyllite asbestos, and actinolite asbes…

(1) Route of entry inhalation, ingestion.(2) Toxicology.Clinical evidence of the adverse effects associated with exposure to asbestos is present in the form of several well-conducted epidemiological studies of occupationally exposed workers, family contacts of workers, and person…

This is a nonmandatory appendix to the asbestos standards for construction and for shipyards. It describes criteria and procedures for erecting and using negative pressure enclosures for Class I Asbestos Work, when NPEs are used as an allowable control method to comply with WAC 2…

Method number: ID-191Matrix: BulkCollection ProcedureCollect approximately 1 to 2 grams of each type of material and place into separate 20 mL scintillation vials.Analytical ProcedureA portion of each separate phase is analyzed by gross examination, phase-polar examination, and c…