 | American Association of State Highway and Transportation Officials AASHTO is a nonprofit, nonpartisan association representing highway and transportation departments. Its primary goal is to foster the development, operation, and maintenance of an integrated national transportation system. |
 | Associated General Contractors of America (AGC) AGC serves our nation's construction professionals by promoting the skill, integrity and responsibility of those who build America. |
 | California Department of Transportation (Caltrans) Caltrans manages more than 50,000 miles of California's highway and freeway lanes, provides inter-city rail services, permits more than 400 public-use airports and special-use hospital heliports, and works with local agencies. |
 | Check Current Highway Conditions (Caltrans) Caltrans provides real-time access to checking highway conditions across the state of California. The Division of Traffic Operations allows you to enter the California highway number for current road information. |
 | Federal Highway Administration (FHWA) The Federal Highway Administration strives every day to improve transportation for a strong America. Their top priorities are to make transportation safer and more secure, to reduce traffic congestion, and to preserve the environment. |
 | Governors Highway Safety Association (GHSA) GHSA provides leadership and representation for the states to improve traffic safety, influence national policy and enhance program management. |
 | Maintenance Superintendents Association (MSA) The Maintenance Superintendents Association is supported by a membership comprised Municipal, County, State and Special District employees who are responsible for, and dedicated to the cost effective maintenance of the Public infrastructure, and the commercial entrepreneurs who supply them with the equipment, materials and technical support to carry out this vital mission. |
 | Manual on Uniform Traffic Control Devices (MUTCD) The Manual on Uniform Traffic Control Devices, or MUTCD defines the standards used by road managers nationwide to install and maintain traffic control devices on all streets and highways. The MUTCD is published by the Federal Highway Administration (FHWA) under 23 Code of Federal Regulations (CFR), Part 655, Subpart F. |
 | National Association of County Engineers (NACE) The National Association of County Engineers (NACE) was founded in July 1956, with membership open to county engineers or county road officials. |
 | Standard Highway Signs Book The Standard Highway Signs Book 2004 Edition is a companion document to the 2003 Edition of the MUTCD, including Revision 1. However, the Standard Highway Signs Book contains some frequently-used designs that are not found in the MUTCD. |
 | Ventura County Contractors Association (VCCA) Ventura County Contractors Association is a non-profit membership association of general contractors, subcontractors, building material suppliers and many other leading construction industry businesses. |