아래미국법문규를 잘 읽어 보세요.  하지만, 간혹 학교의 허락하에 주당 15시간까지는 가능하지 않을까 생각합니다.  관광비자출국자는 필히 확인하여야 할것입니다.

(7) Enrollment in a course of study prohibited. An alien who is admitted as, or changes status to, a B-1 or B-2 nonimmigrant on or after April 12, 2002, or who files a request to extend the period of authorized stay in B-1 or B-2 nonimmigrant status on or after such date, violates the conditions of his or her B-1 or B-2 status if the alien enrolls in a course of study. Such an alien who desires to enroll in a course of study must either obtain an F-1 or M-1 nonimmigrant visa from a consular officer abroad and seek readmission to the United States, or apply for and obtain a change of status under section 248 of the Act and 8 CFR part 248. The alien may not enroll in the course of study until the Service has admitted the alien as an F-1 or M-1 nonimmigrant or has approved the alien's application under part 248 of this chapter and changed the alien's status to that of an F-1 or M-1 nonimmigrant. (Added 4/12/02; 67 FR 18062)