Introduction The FY 2012-2015 Statewide Transportation Improvement Program (STIP) is a four-year summary program of highway and transit projects developed to fulfill the requirements set forth in the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA) and its successors the Transportation Equity Act for the 21st Century (TEA-21) and the Safe Accountable Flexible & Efficient Transportation Equity Act– Legacy for Users (SAFETEA-LU). The FY 2012-2015 STIP totals $22.273 billion with $8.709 billion for highway improvements and $13.564 billion for transit capital improvements and operating assistance. View the FY 2012-2015 Statewide Transportation Improvement Program Download the FY 2012-2015 Statewide Transportation Improvement Program View the FY 2012-2015 Statewide Transportation Improvement Program Approval Request Letter Adobe Reader is required. Download a free copy of Reader..