Source approach
We prefer primary, official and manufacturer sources for requirements and technical specifications.
- Project Management Institute — General project-management concepts and terminology.
- Manufacturers and service providers — Current model-specific installation, maintenance and support documentation.
- Local building, fire, accessibility and workplace authorities — Current jurisdiction-specific requirements.
- Contracts, permits and approved project procedures — Project-specific requirements that override generic checklist items.
Local requirements
Requirements can change by jurisdiction and over time. Verify current law, codes, permits, contracts, workplace procedures and manufacturer documentation before acting on safety-critical or regulated questions.
No endorsement
Listing a source does not imply endorsement or affiliation.