Check each school's website & see if they have a "TOEFL waiver". Like some schools specifically mention this,
TOEFL waiver requests will be considered only for candidates who have submitted an application for the full-time Texas MBA or who have official GMAT scores on record for the full-time Texas MBA program.
If you would like to apply for a TOEFL waiver, please provide the following information:
* A letter from the applicant requesting the waiver
* A copy of the applicant’s GMAT score as sent by GMAC (including the full breakdown of verbal and quantitative sections)
* A writing sample (an answer to one of our essay questions would be sufficient)
* A written recommendation from a native English speaker who currently has or has had regular verbal interactions with the applicant.
Hope this helps.