Give a stream of consciousness and then the final answer. A civil service commission is a government agency that is constituted by legislature to regulate the employment and working conditions of civil servants, oversee hiring and promotions, and promote the values of the public service. Its role is roughly analogous to that of the human resources department in corporations. Civil service commissions are often independent from elected politicians -

Answer this question: what is the purpose of the civil service commission?
The important part for answering this question is: A civil service commission is a government agency that is constituted by legislature to regulate the employment and working conditions of civil servants, oversee hiring and promotions, and promote the values of the public service.
So, the final answer is regulate the employment and working conditions of civil servants , oversee hiring and promotions , and promote the values of the public service.