OSHA Supplemental Information

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Letters of Interpretation — Selected OSHA Interpretations

05/15/1972 — Marking and width requirements for aisles in industrial operations

03/20/1974 — Lessor and lessee responsibities for posting floor load limits

06/12/1975 — Overhead guards not required for trucks operating in low overhead locations

11/18/1976 — Clarification of Difference Between 1910.106 and 1926.152

08/22/1977 — The wearing of hard hats

01/21/1980 — Bump caps would not provide adequate employee head protection for all exposures in manholes

08/18/1981 — Construction crane certifications

02/12/1982 — The use of a safety chain in lieu of a gate

02/09/1983 — Perimeter protection at setback roof levels

01/18/1984 — Workers cannot sign a release so they can wear a respirator with a beard

10/11/1984 — Facial hair in the face sealing area is unacceptable

12/03/1985 — OSHA standards for foot protection

03/31/1989 — Applicability of the HCS to office workers and copy machine operators

05/16/1990 — Application of the HCS MSDS requirements to distributors selling hazardous chemicals to consumers and employers

05/16/1990 — Availability of MSDSs on Construction Sites

07/06/1990 — Interpretation on whether "an equivalent electronic information system" could be used in lieu of MSDSs to satisfy the HCS

10/05/1990 — Enforcement policy of not citing employees for violations for the safety and health standards

07/25/1991 — The term "wheel chocks" and whether the employment of one chock would satisfy the requirements of the Occupational Safety and Health Administration

06/01/1992 — Feminine hygiene products as regulated waste

07/22/1992 — The use of head protection at construction sites

08/07/1992 — Bloodborne pathogens standard's relationship to the coverage of housekeepers and laundry attendants in a hotel environment

08/14/1992 — Bloodborne pathogens standard's relationship to employees who perform maintenance operations

06/21/1993 — After changing protective clothing for a lunch break, it should not be reused for the balance of the shift

01/14/1994 — Using compressed air for cleaning an employee's body and clothing

01/28/1994 — All electric tools need to be tested by a qualified national testing laboratory and be listed and labeled

04/06/1994 — Wet floors due to weather conditions or the entry of vehicles containing melting snow

08/11/1994 — Construction vs. Maintenance

11/22/1994 — The use of computer-based training to satisfy OSHA training requirements

05/26/1995 — The size of fire extinguisher for construction equipment

07/03/1995 — Interpretation of the Personal Protective Equipment standard

07/24/1995 — The review of first aid training programs

10/27/1995 — Guidance in determining whether elevator pits meet the definition of confined spaces

03/07/1996 — Use of seat belts on powered industrial trucks

05/29/1997 — Mushroom Style Plastic Rebar Covers Used For Impalement Protection

09/09/1997 — Clarification of the Electrical Standard as it applies to flexible power cords on appliances

01/26/1998 — Disabled (hearing impaired) forklift operators

05/22/1998 — Seatbelts for forklifts; fall protection for scissor lifts

05/29/1998 — Using Universal Precautions with Bloodborne Pathogens

07/21/1998 — Aerial lift regulations; fall protection for scissor lifts

10/05/1998 — Medical evaluation for dust mask use

12/16/1998 — Using electrical tape to repair minor damage to the outer jacket of an extension cord

12/31/1998 — Acceptability of western style hard hats

12/31/1998 — Definition of "in storage" and clarification of the requirements for intermittent use of gas cylinders

02/08/1999 — Acceptable alternative to metal guards in mechanical power-transmission apparatus

03/08/1999 — Medical evaluation not required for the use of escape only respirators

04/01/1999 — Maintenance and preservation of employee exposure records

04/19/1999 — Storage of propane and ether gas cylinders with flammable materials is not allowed

05/28/1999 — Access and working space requirements for electric equipment (600V or less)

10/08/1999 — Powered industrial truck training: different types of trucks/workplace conditions

10/22/1999 — Forklifts: free rigging requires manufacturer approval

11/01/1999 — Bloodborne Pathogens: Handwashing facilities must be readily accessible

01/13/2000 — Fall protection requirements for fixed and portable ladders in construction

02/28/2000 — Removal of lockout devices by persons other than those who applied them

05/09/2000 — Pre-operation forklift examinations are not required to be written

08/17/2000 — Noise exposure measurement records must be retained for 2 years

02/16/2001 — Requirements for scaffold grade lumber; qualifications of qualified/competent persons for grading scaffold lumber

03/08/2002 — Clarification of PIT requirements covering: fall protection and safety platforms, seatbelts, LP-gas storage, smoking, and eye wash stations

04/08/2002 — Fall protection requirements for shop-installed shear connectors at 20 feet above ground or a lower level

04/18/2002 — Clarification of 1910.151 (Medical Services and First Aid)

03/07/2006 — Requirement for flame-resistant clothing in petrochemical plant covered by PSM

03/23/2007 — Clarification of "in near proximity" and OSHA's discretion in enforcing first aid requirements in particular cases

03/03/2008 — Clarification of whether an employee can opt out of medical surveillance examinations under the HAZWOPER standard