C-Tran (stylized as C-TRAN), more formally the Clark County Public Transit Benefit Area Authority, is a public transit agency serving Clark County, Washington, United States, including the cities of Battle Ground, Camas, Vancouver, Washougal, and Yacolt.

C-Tran operates four transit centers: Vancouver Mall, Fisher's Landing in east county, 99th Street at Stockford Village, and Mill Plain near Camas, as well as three park and rides: Salmon Creek, Evergreen, and Andresen.

Along with the opening of Fisher's Landing Transit Center, many lines serving east Clark County and the Vancouver Mall area were rerouted and had their frequency increased.

Fisher's Landing Transit Center links eastern Vancouver with Camas, Washougal and Parkrose (in northeast Portland, Oregon).

While 46.33% of eligible voters, or 73,959 ballots, approved this measure to increase the Clark County sales tax by 0.3% (from the current 7.7%) to continue the funding of the public transportation, 53.67% (85,684 votes) rejected the proposition.

The Proposition 1 was intended to provide continued funding sources for C-Tran after the 1998 statewide repeal of Washington motor vehicle registration tax.

After studies that had first taken place in 2008, plans were approved and finalized in 2012 for construction of a bus rapid transit line, eventually named The Vine (see section below).

The new Vancouver Mall Transit Center opened in January 2017, on the same date that the Vine service began operating.

In June 2020, the former Evergreen Transit Center was converted to a safe parking site for persons experiencing homelessness.

[15] In February 2024, the C-Tran Board of Directors appointed Leann M. Caver as the agency's sixth Chief Executive Officer starting March 1.

Sunday and holiday services are reduced, with trips to and from Portland being less frequent, and some express and limited routes may not run.

In addition, C-Tran operates three limited-stop routes; the 41 serves Fisher's Landing Transit Center and Downtown Vancouver.

[16] Ten new low-floor, articulated, hybrid buses provide service every 10–15 minutes in mixed traffic to curbside stations.

[17] Among the project's expected benefits were that transit signal priority and off-board fare collection would increase the speed of the bus by about ten minutes compared to existing service.

Studies on the corridor began in 2008, and funding for the $53 million project was approved in July 2014, with 80% federal money, 6% state, and 14% local.

[19] Construction began with a groundbreaking ceremony held at the planned downtown terminus on August 24, 2015,[20] and finished in January 2017.

The agency offers reduced rates for eligible "Honored Citizens" who qualify based on age, disability, or Medicare enrollment.

[31][32] The agency used Gillig Phantom buses from 1990 until the complete retirement of the fleet in October 2024; one bus, coach 1776, was retained for use at special events due to its eagle-and-flag livery.