The Department of Mathematics offers a PhD in Applied Mathematics.
Requirements for the Mathematics and Applied Mathematics PhDs differ only in minor respects, and no distinction is made between the two in day-to-day matters.
Continuing students wishing to transfer from one program to another should consult the graduate advisor in 910 Evans Hall. Transfers between the two PhD programs and from the PhD program to the MA program are fairly routine but should be done prior to taking the qualifying exam. It is a formal policy of the department that an applicant to the PhD program who has previous graduate work in mathematics must present very strong evidence of capability for mathematical research.
Source: Berkeley Academic Guide