ACGIH^® Board Ratifies 2023 TLVs^® and BEIs^®

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CHEMICAL SUBSTANCES TLVs^®

2023 NOTICE OF INTENDED CHANGES (NIC)
Benzene (Updated 7-1-2023)
Captafol (Added 7-1-2023)
Diacetyl (Added 7-1-2023)
Dimethenamid-P
Endotoxins
Epichlorohydrin (Added 7-1-2023)
Ethylene glycol dimethyl ether
Fenoxycarb (Added 7-1-2023)
Fentanyl and Fentanyl Citrate (Added 7-1-2023)
Hexane (Commercial, < 54%) and Hexane Isomers, Other Than n-Hexane (Added 7-1-2023)
Methylcyclohexane (Added 7-1-2023)
Nitric acid
Pentaborane (Added 7-1-2023)
Phthalic Anhydride (Added 7-1-2023)
Trimetacresyl phosphate
Triparacresyl phosphate

2023 ADOPTIONS
Acetylsalicylic acid (Updated 7-1-2023)
Bensulide (Added 7-1-2023)
Buprofezin (Added 7-1-2023)
tert-Butyl Hydroperoxide (Updated 7-1-2023)
Formic acid (Updated 7-1-2023)
Halothane (Updated 7-1-2023)
Methyl Ethyl Ketone (Updated 7-1-2023)
Phenylethyl Alcohol (Added 7-1-2023)
Sevoflurane (Added 7-1-2023)
Triclosan (Added 7-1-2023)

2023 UNDER STUDY LIST
Chemical Substances
Acrolein
Carbon monoxide
b-Chloroprene
Dicamba
Diflurodibromomethane
Dimethyl carbamoyl chloride
Imidacloprid
Isopropyl ether
Malathion
4, 4′-Methylene bis(2-chloroaniline)
Metribuzin
Molybdenum
Parathion
m-Phenylenediamine
o-Phenylenediamine
p-Phenylenediamine
Propionitrile
1,2,3-Trichloropropane
Triclopyr
Triethanolamine
Trimethylolpropane
Vinylidene chloride
Vinylidene fluoride

PHYSICAL AGENTS TLVs^®
2023 NOTICE OF INTENDED CHANGES (NIC)
Infrasound and low-frequency sound
Whole-body vibration

2023 Notice of Intent to Establish (NIE)
Above shoulder work

2023 ADOPTIONS
Heat stress and strain
Upper limb localized fatigue

2023 UNDER STUDY LIST

Acoustic

• Audible sound

Optical Radiation

• Lasers
• Light and Near-infrared radiation
• Non-Laser Optical Radiation
• Ultraviolet Radiation

Ergonomics

• Hand Activity
• Hand-Arm Vibration
• Lifting and Carrying
• Push/Pull

Ionizing Radiation

Thermal Stress

• Cold stress

Other Issues Under Study

• Appendix B: Personal Physiologic Monitoring in the Workplace
• Appendix C: Statement on Fatigue and its Management in the Workplace
• Generalized Fatigue and Work Schedules
• Head supported mass and neck loading
• Hyperbaric pressure
• Hypobaric pressure

BIOLOGICAL EXPOSURE INDICES (BEIs^®)
2023 NOTICE OF INTENDED CHANGES (NIC)
Di(2-ethylhexyl) phthalate (Added 7-1-2023)
Platinum

2023 ADOPTIONS
Arsenic (and soluble inorganic compounds) (Updated 7-1-2023)
Formic acid Feasibility Assessment (short BEI NFS) (Added 7-1-2023)
Xylenes (technical or commercial grades) (Updated 7-1-2023)

2023 UNDER STUDY LIST
Chemical Substances
Acrylonitrile
Adipates
Aluminum
Antimony
Atrazine
Benzene
Bisphenol-A
1,3-Butadiene
Copper and its organic compounds
Dibutyl phthalate
Ethylbenzene
Glyphosate
n-Heptane
Iodine
Methyl ethyl ketone
Nicotine
Trimethyl benzene

Feasibility Assessments
Acrylonitrile
Alachlor
Aluminum
Antimony
Beryllium
1-Bromopropane
Chlorpyrifos
1,4-Dichlorobenzene
3,3’-Dichlorobenzidine
2,4-Dichlorophenoxyacetic acid
Diethanolamine
Diethylhydroxylamine
2-Ethyl hexanoic acid
Ethylene glycol
Formic Acid
Hydrazine
Inorganic borates
Manganese
Methyl tert-butyl ether
Methyl n-butyl ketone
Methylcyclohexane
Methyl formate
Methyl isobutyl carbinol
α-Methylstyrene
Nitrobenzene
Perfluorooctanoic acid
Selenium
Styrene oxide
Thallium
Trimethylbenzene
Vanadium pentoxide
Vinyl chloride