American Lawyers' Association (AILA) announced on January 15, 2015, through Its InfoNet that, Mexican Embassy in Washington, D.C. informed the public, it had instructed Mexican consulates in the U.S. to start issuing verified copies of birth certificates registered in Mexico. To apply for the copy, Mexico born individuals should contact a Mexican Consulate closest to them and comply with the consulate's rules for making such application. The announcement is a big deal since prior to that, it had been a problem getting a birth certificate from Mexico, expecially for individuals who had no relatives or restricted access to Mexico to make an application.
References: AILA InfoNet: AILA Doc. No. 15011545.