NewConstruction Trades Coconino Community CollegeConstruction TradesFlagstaff, AZp>Part-time employees working 20 hours or more per week for at least 20 weeks within the fiscal year (July 1-June 30) are eligible to participate in the Arizona State Retirement System and receive tuition waiver benefits. Coconino Community College is creating a pool of interested instructors to teach and train students in construction-related trades.