As of 2015, all states but 14, including Washington, Oregon, Nevada, California and Minnesota, and the District of Columbia honor Texas concealed carry permits, according to the Texas Department of Public Safety. Colorado only recognizes Texas permits issued to residents of Texas who are 21 or over. Texas permit holders are obligated to follow the gun laws of the states that honor Texas permits when in those states.
Texas has reciprocity agreements with other states, under which the states honor each others' permits, and unilateral agreements, meaning Texas honors concealed carry permits from a state that does not in return honor Texas permits, explains Texas Concealed Handgun License Certification and Training.
Because some states do not recognize Texas' concealed carry permits, in January 2015, Senator John Cornyn of Texas introduced The Constitutional Concealed Carry Reciprocity Act. The act makes it legal for anyone with a concealed carry permit in her home state to carry a concealed weapon in any other state that also permits it by law, without the need for a reciprocity agreement between the states, as long as she abides by that state's gun laws, according to Senator Cornyn's website. A similar bill introduced in 2014 died in Congress, notes GovTrack.us, .