Lesson 4: Data Consistency for Special Conditions

The HPD Open Standard introduced Special Conditions in HPD v2.1.1 because more specific reporting rules were needed for some materials added as content to building products. Previously these contents were inventoried using the same processes as chemical substances.

HPD v2.3 introduces customized data entry fields for each Special Condition. These updates support automated completeness checks, better data validation, smarter policies, and visual consistency with other content on the HPD.

Current HPDC Special Condition Policies:

• Biological Materials
• Geological Materials
• Mixed Recycled Content
• Electronic components
• Form-specific hazards
• Minor Fasteners
• Metal alloys