| ACT | Acute Toxicity Data |
| AIR | Additional, Supplemental or Special Safety or Hazard Information or References |
| AM2 | Analytical Methods |
| AP2 | Approvals |
| CAR | Carcinogenicity |
| CON | Conditions to Avoid |
| DCL | Disclaimer |
| DEC | Decomposition, Decomposition Products |
| DEH | Hazardous Decomposition Products |
| DIS | Distribution of Chemical in Environment |
| DM2 | Detection Methods |
| DPI | Disposal Information |
| EDD | Sensitive to Static Charge |
| EFA | Emergency and First Aid Procedures |
| EFB | Emergency Procedures |
| EFX | Effects of Overexposure |
| EIM | Explosion Impact Sensitive Material Hazardous if exposed to the impact of a nearby explosion |
| ENA | Environmental - Acute Aquatic Effects Hazardous to aquatic life if released into bodies of water or watercourses |
| ENB | Environmental - Bioconcentration Material Hazardous as it is accumulated along a biological food chain over time |
| ENG | Engineering Controls Mechanical or structural devices and techniques for preventing or mitigating a hazardous condition, e.g. ventilation device, static hood, splashguards |
| ENO | Environmental - Oxygen Demand Depletes oxygen from the ambient air, water, or soil environment |
| ENS | Environmental - Summary A subsection heading only, required by some government regulations |
| EO2 | Emergency Overview |
| EPA | Employee Protection |
| ESD | Static Sensitive Material |
| EVP | Environmental Protection |
| EXI | Exposure Information |
| EXL | Exposure Limits, Occupational Exposure Limits |
| EYA | Eye Contact: Acute Exposure |
| EYC | Eye Contact: Chronic Exposure |
| EYF | Eye Contact |
| EYZ | Eye |
| FAA | Extinguishing Media: All Fires Safety measures applicable to all types of fires |
| FAL | Extinguishing Media: Large Fires |
| FAS | Extinguishing Media: Small Fires |
| FAT | Environmental Fate (i.e., Oxidized, Photodegraded, etc.) |
| FAZ | Extinguishing Media |
| FEH | Fire and Explosion Hazards |
| FEZ | Fire and Explosion Data |
| FIP | First Aid Procedures |
| FLC | Flammability Conditions Conditions under which the flammability hazards, precautions, or limits apply |
| GCA | General Controls |
| GMA | General Measures |
| GPI | General Safe Handling Procedures or Information |
| HAI | Handling Information |
| HCA | Hazardous Component or Ingredient |
| HCP | Hazardous Product of Combustion One or more different hazardous materials produced when the subject material burns |
| HHA | Health Hazard Information |
| HI2 | Potential Health Effects |
| HZC | Hazard Class |
| HZR | Hazard Rating System A system for both classifying and measuring hazardous characteristics of materials |
| IGA | Ingestion: Acute Exposure |
| IGC | Ingestion: Chronic Exposure |
| IGZ | Ingestion |
| IHA | Inhalation: Acute Exposure |
| IHC | Inhalation: Chronic Exposure |
| IHZ | Inhalation |
| INC | Incompatibility |
| INS | Instability |
| INX | Incompatibility Conditions The conditions under which the stated incompatibility holds true. |
| IRR | Irritancy |
| KY2 | Key or Legend |
| LAB | Label Text |
| LKI | Leak Avoidance, Remediation, or Hazards |
| MCE | Medical Conditions Aggravated by Exposure |
| MUT | Mutagenicity |
| NOT | Notification of Chemical Storage Amount, Spill or Release to the Environment |
| NTE | Note to Physician: Eyes |
| NTR | Note to Physician: Respiratory |
| NTS | Note to Physician: Skin |
| NTZ | Note to Physician |
| OPH | Other Physical Hazards |
| OPR | Other Precautions |
| ORC | Other Regulatory Controls |
| PM2 | Preventive Measures |
| POL | Hazardous Polymerization |
| PPA | Personal Protection: Additional Equipment |
| PPB | Personal Protection: Boots |
| PPC | Personal Protection: Clothing |
| PPD | Personal Protection: Eye/Face |
| PPE | Personal Protection: Eye |
| PPF | Personal Protection: Face |
| PPG | Personal Protection: Gloves |
| PPR | Personal Protection: Respiratory |
| PPS | Personal Protection: Skin |
| PPZ | Personal Protection Equipment |
| PR2 | Preparation and Revision Information |
| PRE | Primary Route(s) of Entry: Eye Contact |
| PRF | Primary Route(s) of Entry: Eye, Inhalation |
| PRG | Primary Route(s) of Entry: Eye, Oral |
| PRH | Primary Route(s) of Entry: Eye, Oral, Skin |
| PRI | Primary Route(s) of Entry: Inhalation |
| PRJ | Primary Route(s) of Entry: Inhalation, Oral |
| PRK | Primary Route(s) of Entry: Inhalation, Oral, Skin |
| PRL | Primary Route(s) of Entry: Inhalation, Skin |
| PRM | Primary Route(s) of Entry: Inhalation, Eye, Oral |
| PRO | Primary Route(s) of Entry: Oral |
| PRQ | Primary Route(s) of Entry: Oral, Skin |
| PRS | Primary Route(s) of Entry: Skin Contact |
| PRT | Primary Route(s) of Entry: Eye and Skin Contact |
| PRU | Primary Route(s) of Entry: Eye, Skin, Inhalation |
| PRZ | Primary Route(s) of Entry |
| RCA | Regulatory Information or Controls |
| REA | Reactivity |
| REC | Reactivity Conditions |
| REP | Reproduction |
| RLI | Release Information |
| RTK | Right to Know Statement of Hazard Code/Information |
| SAP | Safety Precautions |
| SBY | Stability |
| SGW | Signal Word Description of the hazards of the product |
| SHI | Shipping Information, Transportation Requirements |
| SKA | Skin Contact: Acute Exposure |
| SKC | Skin Contact: Chronic Exposure |
| SKT | Skin Contact |
| SKZ | Skin |
| SNS | Sensitization |
| SPF | Special Fire Fighting Instructions |
| SPI | Special Information |
| SPJ | Spill Information |
| SPL | Spill and Leak Information |
| SPP | Special Precautions |
| SPR | Spill, Leak and Release Information |
| STA | Storage Conditions |
| SYP | Synergistic Products |
| SYS | Systematic Effects |
| TER | Teratogenicity |
| TOA | Toxicity Data |
| TRH | Transportation Hazard |
| TS2 | Trade Secret Exemptions |
| VRZ | Ventilation Requirements |
| WDI | Waste Disposal Information |