| Date | Event | Site |
| September 10, 2010 | Deadline for Region Jazz | |
| September 17, 2009 | Region/State Jazz Auditions (If necessary) | La Feria H.S. |
| September 19, 2009 | Jazz Recording Session | La Feria H.S. |
| October 17, 2009 | Pigskin UIL Marching Contest | Donna (Region 28), McAllan (Region 28) |
| October 24, 2009 | Area Marching Contest | TBA |
| November 2-3, 2009 | State Marching Contest | Alamo Dome |
| November 28, 2009 | Deadline for ATSSB H.S. Region Auditions | |
| December 5, 2009 | ATSSB H.S. Region Auditions | Rio Hondo H.S. |
| January 9, 2010 | Deadline for ATSSB J.H.Band Auditions | |
| January 9, 2010 | Deadline for ATSSB H.S. Jazz Auditions (if needed) | |
| January 9, 2010 | ATSSB Area Auditions | Orange Grove H.S. |
| June 10, 2010 | Region 28 Honor Band Hearings | Harlingen H.S. |
| January 16, 2010 | ATSSB M.S./J.H. Auditions & H.S. Jazz Auditons (if needed) | La Feria |
| January 21, 2010 | H.S. Region Jazz Rehearsal | La Feria H.S. |
| January 22-23 2010 | All-Valley Band Clinic/Concert | Donna H.S. |
| February 10-13, 2010 | TMEA Convention/Clinic | San Antonio |
| March 1, 2010 | Deadline for Honor Band Entry (Forms & Check) | |
| March 6, 2010 | Solo & Ensemble | San Benito (Region 28), |
| March 30-31, April 1, 2010 | M.S. Concert & Sight Reading | Donna (Region 28), |
| April 14-16, 2010 | H.S. Concert & Sight Reading | Donna (Region 28), |
| May 8, 2010 | State Wind Ensemble | Austin |
| May 20, 2010 | Deadline for OPS entries | |
| May 29-31, 2010 | State Solo & Ensemble | San Marcos |
| All Checks/Entries for ATSSB Region Events must be sent to: | ||
| ATSSB Region 15/28 | ||
| c/o Eddie Benitez | ||
| 703 Roy St. | ||
| Donna, Tx 78537 | ||
| Mail all UIL Checks/Entries to: | ||
| Allen Clark, Secretary | ||
| 249 Rancho Viejo Blvd. | ||
| Brownsville, Tx 78526 | ||
| Home Phone: 956-831-2672 | ||
| E-mail: allen.clark@utb.edu |