Is it hard to switch major within same school (from software engineering to computer science)?

Colleges & Universities University of California - Irvine
3

Course grades

2.0 average GPA or above in ICS/CSE 21 and 22 or Informatics 41 and 42, or ICS 31 and 32; and one of the following: Math 2A, Math 2B, ICS 6B/Math 6B or ICS 6D/Math 6D.

Source:http://www.changeofmajor.uci.edu/CoM_ICS.html