500
At least 4 nonaudit services prohibited by SOX Section 201 and at least 1 nonaudit service that must be pre-approved.
What is...
Prohibited: Bookkeeping, Financial Information Systems Design and Implementation, Appraisal or valuation services, Actuarial Services, Internal Audit outsourcing services, Management functions or HR, Investment adviser (service provider), and Legal services unrelated to audit.
Preapproved: Tax Services and some consulting (gray area).