| Business | Phone |
| Us Mine Safety & Health Adm 17319 San Pedro 110, San Antonio 78232 | (210) 403-5943 |
| Us Labor Dept Wage & Hour Div 10127 Morocco St 140, San Antonio 78216 | (210) 308-4515 |
| Us Mediation & Conciliation 10127 Morocco St 108, San Antonio 78216 | (210) 308-4500 |