An Engr learns his craft largely from association with fellow engrs on the job. Taking mandated courses contributes very little to an engrs knowledge; however, their should be mandatory courses on ethics to be taken every 5 years, in  my  opinion. There could also be courses that aquaint engrs with project review procedures.  State and local govts are a labrenth, each agency, it seems,  have there own codes, rules and regulations. Learning the ins and outs of state and local govts is a lifetime learning experience!