Sources

Sources and reference standards

Market prices come from current local quotes; regulatory and technical context uses authoritative sources where possible.

OSHA — Walking-Working Surfaces

OSHA — Walking-Working Surfaces. U.S. workplace safety context for walking-working surfaces.

OSHA — Fall Protection

OSHA — Fall Protection. U.S. fall-protection information relevant to work at height.

U.S. EPA — Indoor Air Quality

U.S. EPA — Indoor Air Quality. Public IAQ context for occupied-building renovation.

Local requirements

Accessibility, building, fire, workplace, planning and construction requirements vary by jurisdiction. The authority having jurisdiction and project team control the actual project.