NTPEP Audit Documents

Qualification of Highway Product Manufacturers Through the Use of NTPEP Audits
SP01 – Standard Practice for Audits​​ (SP01-20-01)

NTPEP Audit Programs (NAP) Usage Guide
NAP Usage Guide​

QSM Review Checklist
2021 QSM Review Checklist

Pre-Audit Applications and Audit Reports

Geotextiles (GTX)
Pre-Audit Application
Blank Prime Source Audit Report Worksheets
Blank Private Label Audit Report Worksheets

Reinforced Geosynthetics (REGEO)​
Manufacturer Pre-Audit Application

HDPE Pipe (HDPE) and Polypropylene Pipe (PPP)
Pre-Audit Application
Blank Audit Reports Worksheets​

PVC Pipe (PVC)
Pre-Audit Application

Rebar (REBAR)
Pre-Audit Application​
Blank Audit Report Worksheets

Stainless Steel (SSTL)
Pre-Audit Application​

Weldable Wire Reinforcement (WWR)
Pre-Audit Application​​​
Blank Audit Report Worksheets ​

Seven Wire Strand (SWS)
Pre-Audit Application​​

Guardrail (GRL)
Pre-Audit Application

Corrugated Metal Pipe (CMP)
Pre-Audit Application​​

Elastomeric Bridge Bearing Pads (EBB)
Pre-Audit Application​​