The Time Allocation Committee (TAC) consists of a member of each of the four IAA departments and UDIT unit, in addtion to the OSN director. The current members are:
| Name | Department |
|
René Duffard Maya García Comas |
co-Chair / OSN Director co-Chair / OSN Director |
| Olga Muñoz Gómez | Solar system |
| Rubén García Benito | Extragalactic Astronomy |
| Susana Martín Ruiz | Stellar Physics |
| Alfredo Sota Ballano | Radioastronomy & Galactic Structure / UDIT |
