HPDC has published guidance covering the following Special Conditions:

  • Biological Materials
  • Geological Materials
  • Mixed Recycled Content
  • Electronics

Detailed information on each of these is available in HPDC’s Emerging Best Practices guidance.

In addition, HPDC is currently developing guidance for the following Special Conditions:

  • Metal alloys
  • Float glass
  • Ceramics
  • Reaction products
  • Material with CAS RN but no specific molecular structure
  • Defined substances without identifier
  • Plastics and polymers
  • Mixed hardware and fasteners
  • Form-specific hazards

As these additional Special Conditions policies are completed, HPDC members will be notified, and use of the Special Conditions will be enabled in the HPD Builder. 

HPDC values the proposals, input, and participation of all stakeholders and member companies in the development of Special Conditions. If you are interested in participating in this effort, please contact Tristan Roberts, HPDC’s technical director, at troberts@hpd-collaborative.org.