In Texas, if you are under 21, you may STILL be a CHL holder if you are a member of the armed forces (or honorably discharged). In the state of Washington, this is a big no-no. However, Texas unilaterally recognizes Washington CCL. If Washington recognized the Texas CHL, they would be allowing somebody to carry in a way that could genuinely get them arrested (conflicting laws like that are considered very bad by prosecutors, but trial lawyers love them
)If you're a Texas resident, you cannot concealed carry in Washington with your Texas CHL. You would need a license from Arkansas, Florida, Louisiana, Michigan, Mississippi, Missouri, North Carolina, Ohio, Oklahoma, Utah, or (obviously) Washington,