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Interpretations

Notice: Oregon OSHA provides compliance guidance that represents the explanation, clarification, or application of the provisions of the Oregon Safe Employment Act (ORS Chapter 654) and Oregon OSHA's administrative rules.  It does not add to, alter, or replace those provisions that alone are legally binding.

Compliance guidance depends on the particular facts and circumstances described in the request for guidance. The existence of other facts or circumstances may lead to different conclusions.

You should be aware that OR-OSHA's compliance guidance is subject to periodic review and clarification, amplification, or correction and can be affected by subsequent rulemaking or changes in the law.

Interpretations Categories:



Agriculture

08/23/11 - Jurisdiction for farms when the farm's only employees are family members (pdf)
07/08/11 - Waterless Hand Sanitizer Use in Agriculture (pdf)
02/25/11 - Fish Hatcheries (pdf)
10/15/10 - Anhydrous Ammonia in Agricultural Farm Supply Businesses (pdf)
08/02/07 - Pesticide labels and eyewash requirements (pdf)
12/07/05 - Number of toilets per person in fixed work area (pdf)
08/21/02 - Division 4, Agriculture Clarifications (pdf)
01/24/00 - Using Orchard Ladders for other than orchard work (pdf)


Asbestos

06/21/99 - Asbestos in Construction (pdf)
06/16/98 - Asbestos bulk sampling (pdf)


Bloodborne pathogens

05/04/10 - Train Workers in a Manner They Understand (pdf)
01/01/05 - Four questions about state OSHA program (pdf)
08/13/04 - Employees Designated as First-Aid Providers (pdf)
12/24/02 - Handwashing in Healthcare (pdf)
07/23/01 - Refresher Training (pdf)
01/11/01 - Volunteer Employee Regulations (pdf)
03/02/99 - Biohazard Bags (pdf)
02/26/98 - Handling of Infectious Materials (pdf)
10/07/97 - Transportation of Hazardous Waste (pdf)
06/02/97 - Medical waste (pdf)
04/02/97 - Non-profit organizations and volunteers (pdf)
01/15/97 - Collateral Duty (pdf)
01/15/96 - Waiving Hepatitis B Vaccination (pdf)
01/19/90 - Formaldehyde -- Use in Funeral Homes (pdf)


Compressed air and gases

04/22/09 - Transport and storage of compressed gas cylinders (pdf)
05/25/07 - Air Wand automatic cut-offs (pdf)
09/25/06 - Compressed Air Pipe Labelling (pdf)
10/11/96 - Compressed air safey (pdf)
01/30/95 - Use of Compressed Air for Cleaning Purposes (pdf)


Confined spaces

07/24/13 - Train the Trainer (pdf)
07/24/13 - Retrieval systems (pdf)
07/24/13 - Rescue work in confined spaces (pdf)
10/09/12 - Fall Protection in Confined Spaces (pdf)
09/23/96 - Entry rescue (pdf)
06/26/96 - Using PVC for general ventilation (pdf)
04/11/81 - Confined Space hazards in cleaning-enclosed dairy equipment (pdf)


Construction

07/24/13 - Rescue work in confined spaces (pdf)
08/29/12 - Power line Safety (pdf)
08/29/12 - Cranes and Derricks in Construction: Frequently Asked Questions (pdf)
04/19/12 - Clarification of High Visibility Safety garments in construction (pdf)
11/10/10 - Construction crane operator requirements until November, 2014 (pdf)
09/01/09 - Stacking Materials (Safe Heights) (pdf)
04/22/09 - Transport and storage of compressed gas cylinders (pdf)
02/26/09 - Climbing Rebar (pdf)
07/14/08 - Construction Activity -vs- Maintenance Work (pdf)
05/28/08 - Multi-employer contractor requirements (pdf)
02/21/08 - Required clearances from the neutral conductor (pdf)
11/25/07 - Letter to PGE on construction vs. maintenance work (pdf)
05/25/07 - Air Wand automatic cut-offs (pdf)
10/21/05 - Guardrails, stair railings, parapets (pdf)
05/14/04 - Usage of GFCI's on Construction Sites (pdf)
06/11/03 - Clarification of GFCI Standard (pdf)
04/28/03 - Sorting Hooks when Setting Stringers for Temporary Bridges (pdf)
03/25/03 - Trench Shields (pdf)
11/26/02 - Division 3, Subdivision R Interpretations (pdf)
09/26/02 - Delivery of Roofing Materials on Construction Sites (pdf)
03/06/01 - Jurisdiction of city, state & county employees (pdf)
11/09/99 - DOT Approved Gas Cans (pdf)
06/30/98 - Flush Toilets (pdf)
08/25/97 - Hazard Alert-Electrical box guarding (pdf)
06/27/97 - Application of rules and sole proprietorship (pdf)
05/19/97 - Wire rope flagging
05/12/97 - 1/2 hour Fire Resistant barriers (pdf)
01/15/97 - Assured grounding program
12/05/96 - Tunneling and use of propane equipment (pdf)
11/18/96 - Catch platforms (pdf)
10/31/96 - Contractor safety responsibilities (pdf)
06/17/96 - Fall protection and return-to-work programs
02/28/96 - Fall protection temporary and fixed work platforms (pdf)
07/28/95 - Use of Scaffolding as an Anchorage for Personal Fall Arrest Systems (pdf)
05/16/94 - Spider Boxes on Construction Sites (pdf)
05/24/93 - Ladders Attached to Scaffolding (pdf)
09/30/91 - Excavation/Competent person and radial arm saw guarding (pdf)
09/05/91 - Construction Ladder Code (pdf)
09/25/90 - Material Chutes at Building Demolition Sites (pdf)


Cranes and derricks

04/18/14 - Crane Operator Certification (pdf)
08/29/12 - Cranes and Derricks in Construction: Frequently Asked Questions (pdf)
08/29/12 - Power line Safety (pdf)
05/10/11 - Steel Erection, protection for workers working in locations covered by one or more floors exposed to overhead lifting operations (pdf)
04/25/11 - Required inspections for gantry cranes (pdf)
04/19/11 - Anti-two Blocking Systems (pdf)
11/10/10 - Construction crane operator requirements until November, 2014 (pdf)
12/16/94 - Operations of Cranes (pdf)


Electrical

08/29/12 - Power line Safety (pdf)
02/21/08 - Required clearances from the neutral conductor (pdf)
01/28/08 - Rubber goods use and testing (pdf)
11/23/05 - Exposure to light bulb hazard (pdf)
05/14/04 - Usage of GFCI's on Construction Sites (pdf)
03/16/04 - NFPA 70E (pdf)
02/02/04 - Electrical Panel clearance requirements (pdf)
12/08/03 - Static Electricity (pdf)
06/11/03 - Clarification of GFCI Standard (pdf)
05/08/03 - Definition of "Railway" as found in OAR 437-002-1910.302, Electrical (pdf)
11/26/02 - Division 3, Subdivision R Interpretations (pdf)
04/02/99 - Tree trimming (pdf)
09/15/98 - Un-Licensed Electrical Worker Requirements (pdf)
12/18/97 - Safety Watcher (pdf)
10/27/97 - Use of harness for hot work (pdf)
08/25/97 - Hazard Alert-Electrical box guarding (pdf)
05/20/97 - Harness Flammability in Electrical Power transmission work (pdf)
05/20/97 - Fall Protection in Electrical Power work (pdf)
06/28/96 - Requirements for employees doing high voltage work (pdf)
05/01/96 - Training requirements for electrical workers (pdf)
05/16/94 - Spider Boxes on Construction Sites (pdf)
04/01/93 - Labeling of Temporary Electrical Circuits (pdf)


Excavation

05/29/14 - Foundation/Basement Excavations (pdf)
03/25/03 - Trench Shields (pdf)
07/25/02 - Shoring Systems (pdf)
07/13/93 - Shallow Trench Excavations (pdf)
09/30/91 - Excavation/Competent person and radial arm saw guarding (pdf)
03/01/89 - Tripod, Rescue-Descend Standards (pdf)


Eyewash and deluge showers

08/02/07 - Pesticide labels and eyewash requirements (pdf)
05/25/07 - Tempered Eye Wash Stations (pdf)


Fall protection

10/09/12 - Fall Protection in Confined Spaces (pdf)
01/26/12 - Fall Protection chip trailers (pdf)
01/26/12 - Fall Protection During Building Maintenance (pdf)
02/25/11 - Fish Hatcheries (pdf)
02/26/09 - Climbing Rebar (pdf)
07/14/08 - Construction Activity -vs- Maintenance Work (pdf)
06/04/07 - Warning Lines (pdf)
05/07/07 - Fall protection while refueling vehicles (pdf)
10/21/05 - Guardrails, stair railings, parapets (pdf)
08/16/02 - Distance from edge tie off question (pdf)
07/05/02 - Comparing prussik knots to mechanical grab devices (pdf)
07/16/01 - Fall Protection Requirements for Working on Cell Phone Towers (pdf)
09/01/00 - Body Belts in Aerial Lifts (pdf)
06/16/98 - Body harness vs. belts in Electrical Power Work (pdf)
11/13/97 - Rail Car Workers (pdf)
05/20/97 - Fall Protection in Electrical Power work (pdf)
11/18/96 - Catch platforms (pdf)
06/17/96 - Fall protection and return-to-work programs
02/28/96 - Fall protection temporary and fixed work platforms (pdf)


Firefighters

01/26/12 - Leg Protection for Fire Fighters using Chain Saws (pdf)
01/12/12 - High Visibility Safety Garments (pdf)
03/30/10 - Training of Minors in Fire Cadet Program (pdf)
10/30/08 - Employer responsibility during emergencies (pdf)
07/11/08 - Fall protection for "real-time" simulated fire service training on elevated surfaces (pdf)
05/25/07 - Operating fire department apparatus (pdf)
05/15/07 - Live fire burn (pdf)
11/28/05 - Volunteer Firefighting training requirements (pdf)
04/22/05 - Correct PPE Standards for Fire Fighters (pdf)
03/26/03 - Fire Code Interpretations, Personal Protective Equipment requirements of the 2 in 2 out rule (pdf)
01/31/03 - Intent of OAR 437-002-0182(25) & (26) (pdf)
11/18/02 - 2 in 2 out rule, stand-by firefighter performing other duties (revised April 15, and July 21, 2005) (pdf)
01/29/01 - Replacement of the Oregon Basic Firefighter Course with the National Fire Protection (NFPA 1403) (pdf)
01/25/99 - Personal alert safety system devices (pdf)
10/06/97 - Protective clothing during fire suppression activities (pdf)
12/05/96 - Fire fighters and lockout/tagout (pdf)
11/18/96 - Fire suppression (pdf)
09/27/96 - Fire fighters and gas valves (pdf)
06/14/96 - Fire Fighters--Minimum number to respond to structural fire (pdf)


Fire protection

07/11/08 - Fall protection for "real-time" simulated fire service training on elevated surfaces (pdf)
08/02/07 - Fire extinguisher inspections at remote, unoccupied locations (pdf)
10/28/98 - UCB Fire Rated hatch (pdf)


First Aid

08/25/09 - Providing MSDS sheets while working with dietary supplements (pdf)
10/11/04 - First Aid: Requirement to have supplies in unlocked cabinets, available and accessible (pdf)
08/13/04 - Employees Designated as First-Aid Providers (pdf)
06/23/99 - First aid & CPR retraining intervals (pdf)
03/02/94 - First Aid Regulations--Interpretation of (pdf)
02/26/93 - First Aid Regulations Interpretations (pdf)
06/08/92 - Tree Top CPR (pdf)


Flammable/combustible liquids

11/10/09 - Clarification on the Flammable and Combustible Liquids Standards (pdf)
11/09/99 - DOT Approved Gas Cans (pdf)
03/21/94 - Disposable Butane Lighters (pdf)
10/19/93 - Gasoline Storage Containers (pdf)


Formaldehyde

07/23/07 - Bulk formaldehyde sample analysis methods (pdf)
01/19/90 - Formaldehyde -- Use in Funeral Homes (pdf)


General safety and health interpretations

05/18/99 - Installation of metal and woodworking machinery (pdf)
09/27/96 - High pressure water lines (pdf)
03/21/94 - Portable Electric Grinders (pdf)
11/18/92 - Amount of time for a new business to comply with the OSHA Rules (pdf)


Hazard communication

05/04/10 - Train Workers in a Manner They Understand (pdf)
08/25/09 - Providing MSDS sheets while working with dietary supplements (pdf)
10/31/08 - MSDS for Metals (pdf)
09/25/06 - Compressed Air Pipe Labelling (pdf)
04/07/03 - H2S Exposure (pdf)
05/21/99 - Electronic access to MSDS's (pdf)
10/15/98 - MSDS for waste oils (pdf)
08/24/98 - Labeling Field Requirements (pdf)
08/24/98 - MSDS Requirements for aerosol paint cans (pdf)
06/30/98 - Storing all MSDSs in one place (pdf)
06/16/98 - Hazardous Chemicals in Paint (pdf)
06/16/98 - Retail distributors selling hazardous chemicals (pdf)
03/06/98 - Storing MSDSs electronically (pdf)
04/14/97 - Documentation of training
03/21/97 - Applicability to drugs
01/16/97 - Labeling requirements
07/30/96 - Chemicals requiring a MSDS (pdf)
11/18/92 - Amount of time for a new business to comply with the OSHA Rules (pdf)
10/23/91 - HazComm: Employer Responsibility (pdf)


Hazardous substances/chemicals

09/25/06 - Compressed Air Pipe Labelling (pdf)
01/01/05 - Four questions about state OSHA program (pdf)
08/13/04 - Employees Designated as First-Aid Providers (pdf)
04/07/03 - H2S Exposure (pdf)
01/31/03 - Intent of OAR 437-002-0182(25) & (26) (pdf)
11/29/01 - Arsenic (pdf)
05/24/00 - Fluorescent Light Fixtures Containing Polychlorinated Biphenyls (PCBs) (pdf)
06/30/98 - Clarification of lead Standard (pdf)
06/16/98 - Hazardous Chemicals in Paint (pdf)
05/21/98 - Storage of Garlon-4 and Crop oil (pdf)
01/08/98 - Exposure to Lead, Arsenic and hydrocarbons (pdf)
11/14/94 - Lead in Construction: Observer respirator requirements (pdf)
03/21/94 - Oregon Emergency Response System (pdf)
03/21/94 - Carbon Monoxide Gas Formation in Closed Dairy Equipment (pdf)
03/21/94 - Silane Gas (Silicon Tetrahydride) (pdf)
03/21/94 - Hydrogen Cyanide (HCN) Cylinders (pdf)
10/01/93 - Anhydrous Ammonia (pdf)
09/05/80 - Loading/Unloading of Anhydrous Ammonia (pdf)


Hazardous waste operations - HAZWOPER

07/24/13 - Train the Trainer (pdf)
09/01/09 - HazWoper: Training Levels for Firefighters (pdf)
01/07/09 - HazWoper: Underground Tank Work (pdf)
10/25/04 - Removing animals from meth. houses (pdf)
06/12/98 - Hazardous Waste and Emergency Response Training (pdf)
04/02/97 - Medical support personnel (pdf)
03/21/94 - Oregon Emergency Response System (pdf)


Insurer/self-insurer

04/04/12 - Loss Prevention Programs (pdf)
03/03/10 - Carriers providing hygiene sampling for employers (pdf)


Jurisdiction

12/03/12 - Law Enforcement (pdf)
08/23/11 - Jurisdiction for farms when the farm's only employees are family members (pdf)
01/22/10 - Jurisdiction over Adult Foster Homes (pdf)
03/16/05 - OSEA Act (pdf)
01/23/04 - Recordkeeping requirements for prisoners (pdf)
08/14/02 - Jurisdiction over non-profit organizations (pdf)
03/06/01 - Jurisdiction of city, state & county employees (pdf)
01/23/01 - Jurisdiction of employees working on mine property (pdf)
12/01/98 - Jurisdiction of Tribal and Native-American owned enterprise (pdf)
11/13/97 - Rail Car Workers (pdf)
06/27/97 - Application of rules and sole proprietorship (pdf)
05/07/92 - Volunteer Fire Departments (pdf)


Labor housing

08/14/14 - Agricultural Labor Housing Interpretations (pdf)
08/06/08 - Agriculture labor housing (ALH) heater memo (pdf)
12/12/00 - Hot Water Requirements (pdf)
12/09/99 - Composting Toilets in Labor Housing (pdf)
04/08/99 - Labor Camps, Emergency Situations (Revised April 11, 2003) (pdf)
01/06/99 - Windows in agricultural housing units (pdf)
08/02/96 - Labor Camp Inspection Meeting with U. S. Department of Labor (pdf)


Ladders

06/19/01 - Ladders and Roof Hatches (pdf)
01/24/00 - Using Orchard Ladders for other than orchard work (pdf)
08/15/97 - Extension ladders (pdf)
07/03/97 - Ladders using hoisting devices (pdf)
01/24/97 - Fixed ladders used in vaults (pdf)
08/21/96 - Climbing bar vs. cage (pdf)
05/24/93 - Ladders Attached to Scaffolding (pdf)
09/05/91 - Construction Ladder Code (pdf)


Lockout (Control of hazardous energy)

05/04/10 - Train Workers in a Manner They Understand (pdf)
11/14/03 - Periodic inspection (pdf)
12/05/96 - Fire fighters and lockout/tagout (pdf)
02/15/93 - Lockout Device Removed by Employer (pdf)


Logging/forest activities

03/29/13 - Eye and Face Protection when using a Chainsaw (pdf)
08/13/04 - Employees Designated as First-Aid Providers (pdf)
01/11/01 - Volunteer Employee Regulations (pdf)
02/26/98 - Handling of Infectious Materials (pdf)
01/15/97 - Collateral Duty (pdf)
11/18/96 - Fire suppression (pdf)
01/15/96 - Waiving Hepatitis B Vaccination (pdf)
03/21/94 - Pinch Point hazards on skid steer loaders w/backhoe (pdf)


Machine guarding

05/18/99 - Installation of metal and woodworking machinery (pdf)
05/11/99 - Guarding on printing machines (pdf)
01/08/97 - Radial arm saws
03/10/95 - Craftsman Radial Arm Saw (pdf)
05/17/94 - Guarding of Machinery by Location (pdf)
04/08/94 - Wire Wheel Guarding (pdf)
09/30/91 - Excavation/Competent person and radial arm saw guarding (pdf)
04/30/91 - Chain-type Radial Arm Saw Lower Blade Guard (pdf)
01/16/90 - Makita Powered Mitre Box Saw (pdf)


Material handling

09/01/09 - Stacking Materials (Safe Heights) (pdf)
06/22/04 - Securing Lumber Loads within Yard (pdf)
11/26/02 - Division 3, Subdivision R Interpretations (pdf)
09/29/97 - Transportation of materials, equipment, tools (pdf)


Noise

05/16/07 - Recordkeeping - noise (pdf)
04/26/05 - Clarification Standard Threshold Shifts (STS) (pdf)
02/23/05 - Presbycusis and OSHA 300 log (revised from August 4, 2000 memo) (pdf)
04/02/01 - Clarification of representative personal sampling (pdf)
08/08/00 - Presbycusis Charts for Hearing Loss (pdf)
08/04/00 - Hearing Loss and OSHA 200 log (pdf)


Personal protective equipment

03/29/13 - Eye and Face Protection when using a Chainsaw (pdf)
05/18/12 - Power line tree trimmers wearing chaps (pdf)
04/19/12 - Clarification of High Visibility Safety garments in construction (pdf)
01/26/12 - Leg Protection for Fire Fighters using Chain Saws (pdf)
01/12/12 - Protective Coats (pdf)
01/12/12 - Using latex gloves around moving machinery (pdf)
01/12/12 - High Visibility Safety Garments (pdf)
01/28/08 - Rubber goods use and testing (pdf)
03/26/03 - Fire Code Interpretations, Personal Protective Equipment requirements of the 2 in 2 out rule (pdf)
07/03/97 - Ladders using hoisting devices (pdf)
04/21/97 - Required use of eye protection (pdf)
06/26/96 - Testing rubber gloves


Powered industrial trucks

03/20/09 - Lever lock brake devices (pdf)
10/31/08 - Trailer Jacks (pdf)
03/08/07 - Forklift operator refresher training and evaluation program for truck drivers. (pdf)
12/26/06 - Forklift Operator Certification (Revised 12/26/2006) (pdf)
08/22/06 - Forklift extensions exceeding 1.5 times standard (pdf)
03/24/03 - Mast Guards on Forklifts (pdf)
04/03/00 - Pre-Shift Industrial Truck Inspections (pdf)


Recordkeeping/reporting

05/31/07 - Deleting Entries (pdf)
05/16/07 - Recordkeeping - noise (pdf)
09/20/06 - Reporting Requirements--Hospitalizations (pdf)
01/01/05 - Four questions about state OSHA program (pdf)
04/15/04 - Recordkeeping requirements for volunteer firefighters (pdf)
01/23/04 - Recordkeeping requirements for prisoners (pdf)
05/08/02 - OSHA record-keeping and workers' compensation claim confidentiality (pdf)


Respiratory protection

08/29/12 - N-95 Respirators (pdf)
05/04/10 - Train Workers in a Manner They Understand (pdf)
10/31/08 - Definition of Administer as applies to Respiratory Protection (pdf)
02/11/08 - Tuberculosis and Enforcement of Respiratory Protection Standard (pdf)
03/26/03 - Fire Code Interpretations, Personal Protective Equipment requirements of the 2 in 2 out rule (pdf)
11/29/01 - Arsenic (pdf)
08/17/99 - Respiratory Protection (pdf)
03/16/99 - Written respiratory program (pdf)
11/20/98 - Temporary Agency Employers - Requirements of Respiratory Protection 1910.134 (pdf)
02/06/98 - Required alarms for respirators & oil-lubricated air compressors (pdf)
06/14/96 - Fire Fighters--Minimum number to respond to structural fire (pdf)
11/14/94 - Lead in Construction: Observer respirator requirements (pdf)


Safety committee

03/10/04 - Obligations under Division 1 to inspect State buildings (pdf)
11/18/92 - Amount of time for a new business to comply with the OSHA Rules (pdf)


Sawmills

09/01/09 - Stacking Materials (Safe Heights) (pdf)
06/22/04 - Securing Lumber Loads within Yard (pdf)
02/23/04 - Using stickers to ensure stability for stacking of lumber. (pdf)


Scaffolds

12/20/06 - Welded frame scaffold illustration (pdf)
03/19/01 - Planking Requirements for Scaffolds (pdf)
09/27/00 - Scaffold Base Plates and Mud Sills 29 CFR 1910.451(c)(2) (Revised April 8, 2003) (pdf)
06/16/98 - Space between wall and scaffold (pdf)
02/18/97 - Regulations on scaffolding and lifeline tie offs
11/18/96 - Catch platforms (pdf)
07/28/95 - Use of Scaffolding as an Anchorage for Personal Fall Arrest Systems (pdf)
05/24/93 - Ladders Attached to Scaffolding (pdf)


Spray finishing


Training

07/24/13 - Train the Trainer (pdf)
05/04/10 - Train Workers in a Manner They Understand (pdf)
09/01/09 - HazWoper: Training Levels for Firefighters (pdf)
03/08/07 - Forklift operator refresher training and evaluation program for truck drivers. (pdf)
12/26/06 - Forklift Operator Certification (Revised 12/26/2006) (pdf)
07/05/02 - Comparing prussik knots to mechanical grab devices (pdf)
07/23/01 - Refresher Training (pdf)
06/23/99 - First aid & CPR retraining intervals (pdf)
12/16/94 - Operations of Cranes (pdf)
06/08/92 - Tree Top CPR (pdf)


Trees and shrub services

04/02/99 - Tree trimming (pdf)
07/15/97 - Safety in Tree Care and Removal Business (pdf)


Vehicles

10/31/08 - Trailer Jacks (pdf)
05/07/07 - Fall protection while refueling vehicles (pdf)
11/28/05 - Volunteer Firefighting training requirements (pdf)
06/22/04 - Securing Lumber Loads within Yard (pdf)
04/10/96 - Alternative Safe Riding Facililties (pdf)
04/20/95 - Lever Lock Brake Line Pressure Locking Devices (RESCINDED 11/9/07) (pdf)
06/11/93 - Alternative Safe Riding Facililties (pdf)
02/11/93 - Vehicles Manufactured Without Seatbelts (RESCINDED 11/9/07) (pdf)


Walking/working surfaces

01/26/12 - Fall Protection During Building Maintenance (pdf)
02/25/11 - Fish Hatcheries (pdf)
10/21/05 - Guardrails, stair railings, parapets (pdf)
07/20/04 - Storage rack system (pdf)
02/28/96 - Fall protection temporary and fixed work platforms (pdf)
03/01/95 - Floor Load Calculations (pdf)


Welding

04/22/09 - Transport and storage of compressed gas cylinders (pdf)
10/31/08 - MSDS for Metals (pdf)
05/29/01 - Backflow/Flashback Preventers (REVISED) (pdf)
11/24/92 - Backflow and Flashback Devices on Welding Torches (pdf)


Working over water

04/30/14 - Working on or over water (pdf)
04/07/99 - Lifesaving skiff (pdf)