San Antonio City Charter
ARTICLE XII.
GENERAL PROVISIONS
Sec. 138. Oath of office.
Every person elected or appointed to office in the city, shall, before entering upon the duties of his office, take and subscribe the official oath prescribed by the state constitution and shall give such bond and security for the faithful discharge of his duties as may be required by ordinance.
Sec. 159. Loyalty oath.
Before entering upon the duties of his or her office or employment, every officer and employee of the city shall swear or affirm to the following:
"I ________(Name of officer or employee)________, do solemnly swear (or affirm) that I do not advocate, nor am I a member or affiliate of any organization, group or combination of persons that advocates the overthrow of the government of the United States of America by force or violence; and that during the tenure of my office or employment under the City of San Antonio, Texas, I will not advocate nor become a member or an affiliate of any organization, group or combination of persons that advocates the overthrow of the Government of the United States of America by force or violence." The foregoing oath shall be sworn to or affirmed before a person qualified to administer oaths or affirmations, and shall be attested to by such person. Any person who shall be found guilty, in a public hearing held thereon by the council, of having falsely taken such oath shall immediately forfeit his or her office or employment under the city, and, upon conviction of such offense in any court having jurisdiction, may be punished as provided by the general laws of this state.