From the CSU Mentor Website:
SAT — CSUMENTOR CODE FOR SAT IS 3594
You can list CSUMentor as an SAT score recipient. The SAT institution code for CSUMentor is 3594. CSUMentor will then store your scores for ALL CSU campuses to utilize. If you have not yet sent your scores to either a CSU campus or CSUMentor, you can request this at www.collegeboard.com/student/testing/sat/reg.html.
Note: CSU campuses will accept current and new SAT scores for admission eligibility and exemption from the Entry Level Mathematics and English Placement Test. Applicants may submit scores from either test.
ACT
If you have listed a CSU campus as an ACT score report recipient, you can use the ACT Scores Manager to release your score to additional campuses. Before you can use the ACT Scores Manager, you must first have arranged for your scores to be sent to at least one CSU campus.
If you have not yet arranged for your ACT scores to be sent to a CSU campus, you can learn how to request this at www.actstudent.org/scores/send/index.html.
So the answer to your question is yes.