VOC approval is generally a requirement for commercial & government projects due to VOC legislation and to avoid any potential legal ramifications.
For larger projects such as commercial spaces, there are the added challenges that are not present in the average home. While both commercial and residential spaces are vulnerable to random compounds in soil, groundwater & gas, in the commercial environment there is the added concern of excess volatile organic compounds (VOCs).
VOCs are produced and used in the emission of solvents from paints, flooring adhesives, sealants etc. that are used to cover large exposed areas rather than anaerobic adhesives used in relatively small volumes and between metal threaded parts.