These are useful links regarding C-TPAT

Supply Chain Training Seminar Schedule

Customs-Trade Partnership Against Terrorism (C-TPAT) Enforcement and Appeal Process

Securing the Global Supply Chain: C-TPAT Strategic Plan

C-TPAT Cost Benefit Survey

C-TPAT Program Benefits Guide

C-TPAT Minimum Security Criteria  This page contains many more links from US Customs

C-TPAT Security Guidelines

Apply for C-TPAT

C-TPAT Supply Chain Security Best Practices Catalog (This is a very large pdf, it will take time to load)