Work Plan
NTPEP tests products according to a Project Work Plan, which describes the laboratory and/or field test protocols used to conduct the evaluation. The Project Work Plan is a consensus-based document, and includes peer review and input from industry experts. Each Project Work Plan is adopted after receiving at least two-thirds affirmative support from 52 AASHTO member states. The Project Work Plan is the basis for host states to conduct their testing and evaluation. When implemented by state DOTs, their own state standard specifications may supersede the NTPEP Project Work Plan. Industry is advised to be aware of state-level requirements, which may supersede basic NTPEP testing.

RPM Work Plan - updated August 2015
SPRPM Work Plan - updated February 2014
2011 RPM and SPRPM Work Plan - contains procedures still valid for evaluating Temporary Raised Pavement Markers, Temporary Chip Seal Markers and the Adhesives

Round Robin Testing Results
NTPEP Round Robin Testing-2010

Control Marker Data
Data for 2010 Control Markers - GA DOT - PDF