“(3) (A) With respect to an alien who obtains the status of a nonimmigrant under section 101(a)(15)(F)(i), a full course of study may include practical training and employment authorization for a period of up to 24 months if such employment is related to the field of study undertaken by the nonimmigrant.

“(B) With respect to an alien who obtains the status of a nonimmigrant under section 101(a)(15)(F)(i) and is pursuing or has completed a full course of study in a science, technology, engineering, or mathematics field, a full course of study may include practical training and employment authorization for a period of up to 48 months if such employment is related to the field of study undertaken by the nonimmigrant.

“(C) The Secretary of Homeland Security may establish terms and conditions necessary for the practical training and employment authorization period.”.

“(3) (A) With respect to an alien who obtains the status of a nonimmigrant under section 101(a)(15)(F)(i), a full course of study may include practical training and employment authorization for a period of up to 24 months if such employment is related to the field of study undertaken by the nonimmigrant.

“(B) With respect to an alien who obtains the status of a nonimmigrant under section 101(a)(15)(F)(i) and is pursuing or has completed a full course of study in a science, technology, engineering, or mathematics field, a full course of study may include practical training and employment authorization for a period of up to 48 months if such employment is related to the field of study undertaken by the nonimmigrant.

“(C) The Secretary of Homeland Security may establish terms and conditions necessary for the practical training and employment authorization period.”.