How are portable containers used in-house supposed to be labeled?

If a chemical is transferred from the original container to another container(s) and will not be used immediately by the employee who did the transfer, then the container must be labeled following the requirements at 1910.1200(f)(6). This includes the option to use the same label elements as found on shipped containers of hazardous chemicals (minus the contact information) or the option to use the product identifier and words, pictures, symbols, or a combination of these that convey at least the general hazards of the chemical. This option includes the use of NFPA or HMIS labels. Employees must be trained to read and understand your in-house labeling system.

Workplace labels must include the product identifier and general information regarding all of the hazards of the chemical(s) even when using the NFPA or HMIS system. In some cases, all hazards are not addressed by a particular rating system (e.g., chronic health hazards), and therefore, hazards not addressed must be communicated by words, pictures, symbols, or a combination thereof in addition to the NFPA or HMIS rating system. If any of the required label information is missing, it is not compliant with the HazCom standard.