Green Business

GS-11 and GS-47 Scope Expansion

Green Seal has revised our coatings standards, GS-11 and GS-47. View a detailed summary of this revision.     

For questions or to request more information, please email standards@greenseal.org.

Status of the Project

  • This revision is complete. Edition 3.2 of the standard was issued on October 26, 2015.

Project Information and Updates

Stakeholder Comments

Archives of Notices and Documents

Details of the Revision

This update includes the following changes:
  • GS-11 and GS-47 was combined into a single standard, titled “GS-11, Green Seal Standard for Paints, Coatings, Stains, and Sealers.” GS-47 was withdrawn.
  • Additional product categories were added to the scope of the standard: transparent wall coatings, floor coatings, concrete/masonry sealers, and fire resistant coatings.
  • The limits on Volatile Organic Compounds (VOCs) were updated to reference California Air Resources Board (CARB) regulations.
  • VOC measurement methods were harmonized with programs that regulate VOCs by including evaluation of VOCs by formulation data and difference methods (e.g. CARB Method 310), in addition to the GC/MS methods currently specified.
  • The definition of VOCs was harmonized with VOC regulatory programs, and individual VOCs were evaluated only for compounds present in the product above 0.01%.
  • The criteria, for carcinogens, prohibited ingredients (halogenated solvents), and packaging,  have limited prohibitions and exemptions added for specific ingredients:
    • Prohibitions for triclosan
    • An allowance for PCBTF at a limited concentration in metal lacquers
    • Clarification related to crystalline silica
      • Exemption from recovered content for packages that must meet DOT requirements for transport of dangerous goods
  • Clarifications, corrections, and editorial changes were made.
  • Green Seal invited comments on two additional issues:
    •    1)    Deletion of the requirement that leftover paint from the manufacturing process shall be used locally or domestically where there are existing markets (GS-11, Section 4.2).
         2)    Exemption for diphenyl ketone (unsubstituted benzophenone) from the prohibition on carcinogens.
Other than the update of VOC measurement methods and limits, the revisions do not include major changes to the current human health and environmental requirements listed in the current editions of GS-11 and GS-47. However, products currently certified to GS-11 and GS-47 may need to make changes with the revisions included in the final revised standard.



Green Seal is a non-profit organization devoted to increasing environmental sustainability through standard setting, product certification, and public education. The intent of our standards is to reduce the environmental impacts associated with the manufacture, use, and disposal of products, to the extent technically and economically feasible.