change of nonimmigrant classification

change of nonimmigrant classification Sec. 248. The Attorney General may, under such conditions as he may prescribe, authorize a change from any nonimmigrant classification to any other nonimmigrant classification in the case of any alien lawfully admitted to the United States as a nonimmigrant who is continuing to maintain that status, except an alien classified as a non immigrant under paragraph 15 (D) of section 101 (a), or an alien classified as a nonimmigrant under paragraph (15) (C) of 66 Stat. 219section 101 (a) unless he applies to have his classification changed from a classification under paragraph (15) (C) to a classification under paragraph (15) (A) or (15) (G) of section 101 (a).