Series 28 is an examination under the Financial Industry Regulatory Authority (FINRA) to become licensed record-keepers or operations principals for broker or dealers or securities custodian that are members of FINRA. Series 28 was made to challenge the knowledge of test takers regarding the processes to record investment transactions, broker or dealer or custodian financial responsibilities, requirements of net capital, and investor rights under the Securities Investor Protection Act of 1970. The exam is composed of 95 questions with a passing grade of 70%.