There’s an organization, the Accreditation Board for Engineering and Technology, that is the accrediting agency for all engineering programs in the US. They will and do accredited computer science programs, but unlike engineering programs, CS programs don’t need accreditation. As a result, you’ll typically see CS programs housed in engineering schools (as Carl Meacham correctly suggests) that do have accreditation. However, Carl is absolutely wrong that most such BS programs are in engineering schools, since most institutions that have CS programs (BS or BA) do not have engineering schools (they tend to exist only at some large universities), and there are many schools that house CS with the sciences and/or liberal arts. Schools that do not have engineering programs or that house CS outside of engineering typically are not ABET-accredited.
This is only one definition of engineering degree, but it’s probably the most universally accepted. There isn’t much reason to get ABET accreditation for CS programs, by the way, and I’ve never worked at one. All ABET-accredited schools must have institutional accreditation (e.g., regional accreditation, like most US higher education institutions), and that’s sufficient. The one minor exception is that CS grads from ABET-accredited CS programs are able to take the patent bar, while CS grads from non-ABET-accredited CS programs have to petition. So far, that’s the only major difference I know of, though a colleague told me that his school went through the process and their department got a full-time IT person as a result.