OAR 437-002-0373
Oregon Rules for Thiram

(1)

Scope and Application.

(a)

These rules include requirements for the control of worker exposure to thiram (Tetramethyl- thiuram disulfide).

(b)

These rules apply where worker exposure to thiram may occur during manufacture, storage, packaging, tree application, treated seedling handling, or use of thiram or thiram treated seedlings.

(c)

These rules apply to the transportation of thiram or thiram treated trees except to the extent that the U. S. Department of Transportation may regulate the hazards covered by these rules.

(2)

Definitions. The following definitions shall apply in the application of the thiram rules:
Clean — The absence of dirt or materials which may be harmful to a worker’s health.
Large Seedlings — Those seedlings of such size, either by length or breath, that during normal planting operations it is difficult to avoid contact of the thiram treated plant with the mouth or face.

(3)

General Requirements. The following rules shall be applicable to thiram:

(a)

Permissible Exposure Limits.

(A)

No employee may be exposed to thiram at atmospheric concentrations greater than 0.15 mg/m3 over any 8-hour period; and

(B)

No employee may be exposed to thiram at atmospheric concentrations greater than 0.30 mg/m3 averaged over any period not exceeding 15 minutes.

(C)

Workers shall not be allowed to work more than five days in any seven day period with or around thiram or thiram treated seedlings.

(D)

OAR 437-002-0373 (Oregon Rules for Thiram)(3)(a)(C) above is not applicable if a specific thiram control program in addition to these rules and approved by the Administrator has been implemented.

(b)

Washing and Worker Hygiene.

(A)

Workers shall wash their hands prior to eating or smoking and at the close of work.

(B)

Warm (at least 85°F, 29.4°C) wash water and single use hand wiping materials shall be provided for washing.

(C)

The warm water and hand wiping materials shall be at fixed work locations or at the planting unit.

(D)

Where warm water is not available within 15 minutes travel time, non-alcoholic based waterless hand cleaner shall also be provided.

(E)

Every planter or nursery worker shall be advised to bathe or shower daily.

(F)

The inside of crummies or other worker carrying vehicles shall be washed or vacuumed and wiped down at least weekly during the period of thiram use.

(c)

Personal Protective Measures.

(A)

Clothing shall be worn by workers to reduce skin contact with thiram to the legs, arms and torso.

(B)

For those workers who have thiram skin irritations, exposed areas of the body shall be protected by a suitable barrier cream.

(C)

Only impervious gloves may be worn by workers.

(D)

Workers’ hands should be clean of thiram before placing them into gloves.

(E)

Nursery applicators shall be provided with and use NIOSH approved respirators according to OAR 437, Division 2/I, 1910.134, Respiratory Protection, disposable coveralls or rubber slickers or other impervious clothing, rubberized boots, head covers and rubberized gloves.

(F)

Reserved.

(G)

Nursery workers other than applicators who may be exposed to thiram shall be provided with and use disposable coveralls or rubber slickers or other impervious clothing, impervious footwear and gloves, and head covers unless showers in accordance with OAR 437, Division 2/J, 1910.141, Sanitation, have been provided and are used.

(H)

Eye protection according to OAR 437, Division 2/I, 437-002-0134 (Personal Protective Equipment)(8), shall be provided and worn by workers who may be exposed to splashes of thiram such as during spraying, plug bundling, belt line grading and plugging or other operations.

(d)

Respiratory Protection.

(A)

Only certified respiratory protection which is applicable and approved by NIOSH shall be provided to workers.

(B)

All respirators shall be used and maintained in accordance with OAR 437, Division 2/I, 1010.134, Respiratory Protection.

(C)

Respirators shall be worn when planting large seedlings to avoid mouth and face contact with the thiram treated plant unless equally effective measures or planting practices have been taken.

(e)

Food Handling.

(A)

Food, snacks, beverages, smoking materials, or any other item which is consumed shall not be stored or consumed in the packing area of the nursery.

(B)

Crummies or other worker carrying vehicles shall have a clean area for carrying lunches.

(C)

The clean area of the vehicle shall be elevated from the floor and not used to carry other than food or other consumable items.

(D)

The carrying of lunches, food or other consumable items in tree planting bags is prohibited.

(E)

Care shall be taken to ensure that worker exposure to thiram spray, including downwind driftings, is minimized or eliminated.

(F)

Workers shall stand upwind when bags that contained thiram or thiram treated seedlings are burned.

(f)

Thiram Use and Handling.

(A)

Nurseries shall develop a quality control program approved by the Administrator to ensure that only the minimum amount of thiram necessary to achieve the desired anti-browsing results is applied to the tree seedlings.

(B)

Thiram treated seedlings shall be allowed to set between the time of spraying and packing.

(C)

Seedlings shall be kept moist during packing and whenever possible during planting operations.

(D)

Floors where thiram is used shall not be dry swept but instead vacuumed, washed or otherwise cleaned at least daily.

(E)

Silica chips used to cover seedling plugs shall be removed at the nursery.

(g)

Labeling.

(A)

In the event the Oregon Department of Agriculture, or the U.S. Environmental Protection Agency (EPA), has promulgated and maintained administrative rules relative to the labeling of thiram treated seedlings, such rules shall apply.

(B)

In the event the Oregon State Department of Agriculture, or EPA, has not promulgated or maintained thiram labeling rules, there shall be attached to each container, bundle or wrapping of thiram treated seedlings, a clearly legible and visible tag or label, of waterproof material and printing, on which there is stated in English and Spanish the following:
CAUTION
These seedlings have been treated with an animal repellent containing Thiram (tetramethyl thiuram disulfide) which may flake off the seedlings during handling. Consumption of alcoholic beverages or use of alcohol-base creams or lotions during a time span from 12 hours before to 7 days after exposure to Thiram may result in nausea, headache, vomiting, fatigue, or flushness. Exposure to Thiram may also cause irritation of the eyes, nose, throat, or skin.
Thiram may interfere with or render ineffective medications taken by epileptics or heart patients with blood-clotting difficulties. Animal studies at very high concentrations (more than 250 mg-kg) indicate that Thiram may cause birth defects.
SAFETY PRECAUTIONS
1. Keep treated seedlings moist at all times.
2. Clothing shall be worn by workers to reduce skin contact with Thiram to the legs, arms and torso.
3. A fiber or cloth face mask (respirator) may be worn at the planter’s discretion, except that when plating large seedlings, respirators shall be required to avoid mouth and face contact with thiram treated plants, unless equally effective measures have been taken.
4. Wash exposed skin areas thoroughly after handling treated seedlings and before smoking, drinking, eating or going to the bathroom.
5. If Thiram flakes come in contact with eyes, immediately flush eyes freely with water.
6. Bathe daily and change work clothes at least every other day.
PRECAUCION
Estas plantas han sido tratadas con un replente contra animales que tiene la substacia Thiram (tetramethyl thiuram disulfide) que puede desaparecer en manoseo. La consuncion de bebidas alcoholicas o el uso de cremas o lociones con base de alcohol dentro de 12 horas antes de ser expuesto o hasta 7 dias despues de ser expuesto a Thiram puede resultar en sintomas de nausea, dolor de cabeza, vomito, faiga o rubor. Contacto con Thiram puede causar irritacion de los ojos, nariz, garganta o piel.
Thiram puede interferir o desv alidar en completa las medicinas de los epilepticos o personas con condiciones de la corazon con dificultades de coagulacion de la sangre. Estudios con animals en concentraciones muy altas (mnas que 250 mg-kg) indican que Thiram puede causar desformaciones fetales. Sin que cuando se sembra plantas de semillas grandes macaras estaran requerido a evitar contacto con la boca y la cara con plantas tratado con Thiram excepto cuando otros metodos igualmente efecaz estarah usados.
MEDIAS DE PRECAUTION
1. Guardar mojados las platas siempre.
2. El trabajador necesita usar ropa para reducir el contacto de Thiram con law piernas, brazos, y el torso.
3. Una mascara de fibre o garra (mascara) se puede usar a la discrecion del plantador.
4. Lavese bien los parten expuestos cuando trate los semillos antes de fumar, tomar, comer e ir al bano.
5. Se acaso el Thiram cae en sus ojos, imediatamente labese los ojos libremente con agua.
6. Banese todos los dias y cambiese de ropa de trabojo por lo menos cada otro dia.

(C)

Other containers or thiram handling areas shall be signed and labeled in accordance with OAR 437, Division 2/J, General Environmental Controls, 1910.144 and 1910.145.

(h)

Training.

(A)

Each worker engaged in operations where exposure to thiram may occur shall be provided training relating to the hazards of thiram and precautions for its safe use and handling.

(B)

The training shall be approved by the Administrator.

(C)

The training shall include instruction in:
(i)
The nature of the health hazard(s) from chronic exposure to thiram including specifically the potential for birth defects, alcohol intolerance, and drug interaction.
(ii)
The specific nature of operations which could result in exposure to thiram and the necessary protective steps;
(iii)
The purpose for, proper use, and limitations of protective devices including respirators and clothing;
(iv)
The acute toxicity and skin irritation effects of thiram, and the necessary protective steps;
(v)
The necessity for and requirements of excellent personal hygiene;
(vi)
A review of the thiram rules at the worker’s first training and indoctrination, and annually thereafter.

(D)

A copy of these thiram rules shall be provided to each worker who may be exposed to thiram.
NOTE: Former division 130, Thiram, has been redesignated, renumbered, and slightly amended as Oregon-initiated Rule 437-002-0373 (Oregon Rules for Thiram) to continue coverage not provided in federal standards.
[Publications: Publications referenced are available from the agency.]

Source: Rule 437-002-0373 — Oregon Rules for Thiram, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=437-002-0373.

437‑002‑0005
Adoption by Reference 437‑002‑0006
General Oregon Definitions 437‑002‑0007
Testing and Certification 437‑002‑0010
Adoption by Reference 437‑002‑0015
Adoption by Reference 437‑002‑0020
Adoption by Reference 437‑002‑0022
Additional Oregon General Requirements 437‑002‑0026
Portable Ladders 437‑002‑0032
Ramps and Runways 437‑002‑0033
Piers and Wharves 437‑002‑0040
Adoption by Reference 437‑002‑0041
Exits and Exit Routes 437‑002‑0042
Emergency Action Plan 437‑002‑0043
Fire Prevention Plan 437‑002‑0047
Working Near Overhead High Voltage Lines and Equipment 437‑002‑0060
Adoption by Reference 437‑002‑0080
Adoption by Reference 437‑002‑0081
Oregon Ventilation Regulations 437‑002‑0095
Audiometric Testing in Oregon 437‑002‑0098
Additional Applicability 437‑002‑0100
Adoption by Reference 437‑002‑0101
Oregon Start-Up Dates 437‑002‑0107
Spray Finishing 437‑002‑0109
Explosives and Blasting Agents 437‑002‑0118
Oregon Rules for Reinforced Plastics Manufacturing 437‑002‑0119
Oregon Effective Dates 437‑002‑0120
Adoption by Reference 437‑002‑0122
Dipping and Coating 437‑002‑0134
Personal Protective Equipment 437‑002‑0139
Working Underway on Water. 437‑002‑0140
Adoption by Reference 437‑002‑0141
Additional Oregon Sanitation Requirements 437‑002‑0142
Labor Camps 437‑002‑0144
Additional Oregon Rules for General Environmental Controls 437‑002‑0145
Additional Oregon Rules for Accident Prevention and Tags 437‑002‑0146
Confined Spaces 437‑002‑0154
Individual Locks 437‑002‑0161
Medical Services and First Aid 437‑002‑0170
Worker Protection Standard 437‑002‑0180
Adoption by Reference 437‑002‑0182
Oregon Rules for Fire Fighters 437‑002‑0187
Portable Fire Extinguishers 437‑002‑0200
Adoption by Reference 437‑002‑0210
Additional Oregon Rules for Compressed Air and Compressed Gas Equipment 437‑002‑0220
Adoption by Reference 437‑002‑0221
Additional Oregon Rules for Handling Materials 437‑002‑0223
Oregon Rules for Commercial and Industrial Vehicles 437‑002‑0227
Additional Oregon Rules for Powered Industrial Trucks 437‑002‑0228
Oregon General Requirements for Cranes 437‑002‑0229
Additional Oregon Rules for Overhead and Gantry Cranes 437‑002‑0230
Additional Oregon Rule for Crawler, Locomotive and Truck Cranes 437‑002‑0232
Additional Oregon Rule for Derricks 437‑002‑0233
Oregon Rules for Hammerhead Cranes 437‑002‑0235
Additional Oregon Rule for Slings 437‑002‑0240
Adoption by Reference 437‑002‑0242
Oregon Rules for Machinery and Machine Guarding 437‑002‑0256
Stationary Compactors, Self-Contained Compactors, and Balers 437‑002‑0260
Adoption by Reference 437‑002‑0262
Additional Definitions in Oregon 437‑002‑0264
Additional General Requirements for Hand Tools 437‑002‑0266
Additional Oregon Rules for Guarding Portable Powered Tools 437‑002‑0268
Oregon Rules for Hand-Powered Equipment 437‑002‑0280
Adoption by Reference 437‑002‑0282
Job Planning and Layout 437‑002‑0283
Eye Protection and Protective Clothing 437‑002‑0284
Specifications for Protectors 437‑002‑0285
Special Precautions 437‑002‑0286
Preservative Coatings 437‑002‑0287
Toxic Preservative Coatings 437‑002‑0288
Health Protection and Ventilation — General 437‑002‑0297
Welding or Cutting Containers 437‑002‑0298
Self-Contained Units 437‑002‑0300
Adoption by Reference 437‑002‑0301
Scope and Application 437‑002‑0302
Definitions 437‑002‑0303
Training and Work Planning 437‑002‑0304
First Aid Requirements 437‑002‑0305
Traffic Control 437‑002‑0306
Electrical Hazards 437‑002‑0307
Personal Protective Equipment 437‑002‑0308
Portable Power Tools 437‑002‑0309
Hand Tools 437‑002‑0310
Work Procedures 437‑002‑0311
Mobile Equipment 437‑002‑0312
Oregon Rules for Pulp, Paper and Paperboard Mills 437‑002‑0313
Additional Oregon Rules for Sawmills 437‑002‑0314
Veneer and Plywood Machinery 437‑002‑0315
Shake and Shingle Machinery 437‑002‑0316
Oregon Rules for Telecommunications 437‑002‑0320
Adoption by Reference. 437‑002‑0340
Adoption by Reference 437‑002‑0342
Additional Oregon Definition 437‑002‑0345
Inland Emergency Aid 437‑002‑0355
Air Supply Systems (Compressed Gases and Air) 437‑002‑0360
Adoption by Reference 437‑002‑0363
Oregon Amendment 437‑002‑0364
Oregon Rules for MOCA (4,4’-Methylene Bis (2-chloroaniline)) 437‑002‑0368
Deterioration 437‑002‑0371
Scope and Application 437‑002‑0373
Oregon Rules for Thiram 437‑002‑0377
Additional Oregon Rules for Hazard Communication 437‑002‑0378
Oregon Rules for Pipe Labelling 437‑002‑0382
Oregon Rules for Air Contaminants 437‑002‑0390
Oregon Effective Dates 437‑002‑0391
Additional Oregon Rules for Carcinogens in Laboratories 437‑002‑1001
Asbestos Respiratory Protection Program 437‑002‑1017
Vinyl Chloride Respiratory Protection Program 437‑002‑1018
Inorganic Arsenic Respiratory Protection Program 437‑002‑1025
Lead Respiratory Protection Program 437‑002‑1027
Cadmium Respiratory Protection Program 437‑002‑1028
Benzene Respiratory Protection Program 437‑002‑1029
Coke Oven Emissions Respiratory Protection Program 437‑002‑1030
Additional Oregon Rules for Bloodborne Pathogens 437‑002‑1035
Oregon Rule for Sharps Injury Log 437‑002‑1043
Cotton Dust Respiratory Protection Program 437‑002‑1044
1,2-Dibromo-3-Chloropropane Respiratory Protection Program 437‑002‑1045
Acrylonitrile Respiratory Protection Program 437‑002‑1047
Ethylene Oxide Respiratory Protection Program 437‑002‑1048
Formaldehyde Respiratory Protection Program 437‑002‑1050
Methylenedianiline Respiratory Protection Program 437‑002‑1051
1,3-Butadiene Respiratory Protection Program 437‑002‑1052
Methylene Chloride Respiratory Protection Program 437‑002‑1053
Scope and Application 437‑002‑1054
Definitions 437‑002‑1055
Permissible Exposure Limit (PEL) 437‑002‑1056
Exposure Assessment 437‑002‑1057
Specified exposure control methods 437‑002‑1058
Regulated and Restricted Access Areas 437‑002‑1059
Methods of Compliance 437‑002‑1060
Respiratory Protection 437‑002‑1061
Housekeeping 437‑002‑1062
Medical Surveillance 437‑002‑1063
Communication of Respirable Crystalline Silica Hazards to Employees 437‑002‑1064
Recordkeeping 437‑002‑1065
Dates 437‑002‑1139
Working Over or In Water 437‑002‑2021
Additional Oregon Definitions 437‑002‑2022
Additional Oregon Rules for Powered Platforms 437‑002‑2024
Scope and Application 437‑002‑2025
Definitions 437‑002‑2026
Permissible Exposure Limit (PEL) 437‑002‑2027
Rope Descent & Rope Access Systems 437‑002‑2028
Regulated and Restricted Access Areas 437‑002‑2029
Methods of Compliance 437‑002‑2030
Respiratory Protection 437‑002‑2031
Delayed Effective Dates for Walking-Working Surfaces 437‑002‑2032
Hygiene Areas and Practices 437‑002‑2033
Housekeeping 437‑002‑2034
Medical Surveillance 437‑002‑2035
Medical Removal 437‑002‑2036
Communication of Beryllium Hazards to Employees 437‑002‑2037
Recordkeeping 437‑002‑2038
Dates 437‑002‑2040
Exposure Assessment 437‑002‑2045
Personal Protective Clothing and Equipment 437‑002‑2101
Compressed Gases (General Requirements) 437‑002‑2102
Acetylene 437‑002‑2224
Vehicle Drivers and Riders 437‑002‑2225
Vehicles for Highway and Road Operation Characteristics and Maintenance 437‑002‑2226
Vehicles for Use on Property Other Than Public Roads and Highways Operation, Characteristics and Maintenance 437‑002‑2253
Oxygen-fuel Gas Welding and Cutting 437‑002‑2300
General 437‑002‑2301
Medical Services and First Aid 437‑002‑2302
Job Briefing 437‑002‑2303
Hazardous Energy Control Procedures 437‑002‑2304
Enclosed Spaces 437‑002‑2305
Excavations 437‑002‑2306
Personal Protective Equipment 437‑002‑2307
Portable Ladders and Platforms 437‑002‑2308
Hand and Portable Power Equipment 437‑002‑2309
Live-line Tools 437‑002‑2310
Materials Handling and Storage 437‑002‑2311
Working On or Near Exposed Energized Parts 437‑002‑2312
Deenergizing Lines and Equipment for Employee Protection 437‑002‑2313
Grounding for the Protection of Employees 437‑002‑2314
Testing and Test Facilities 437‑002‑2315
Mechanical Equipment 437‑002‑2316
Overhead Lines 437‑002‑2317
Line-clearance Tree Trimming 437‑002‑2318
Communication Facilities 437‑002‑2319
Underground Electrical Installations 437‑002‑2320
Substations 437‑002‑2321
Power Generation Installations 437‑002‑2322
Special Conditions 437‑002‑2323
Helicopters 437‑002‑2324
Definitions
Last Updated

Jun. 8, 2021

Rule 437-002-0373’s source at or​.us