Since a lot of people on this forum took the Part 107 test when it first became available in August of 2016 this year will be the time to take a retest "Vaild for 2 years – certificate holders must pass a recurrent knowledge test every two years" I wasn't sure if the test would be simply be a repeat of the initial test but it looks like its a subset and will just cover 7 of the 12 original topics. -------------------------------------------------------------------- §107.73   Initial and recurrent knowledge tests. (a) An initial aeronautical knowledge test covers the following areas of knowledge: (1) Applicable regulations relating to small unmanned aircraft system rating privileges, limitations, and flight operation; (2) Airspace classification, operating requirements, and flight restrictions affecting small unmanned aircraft operation; (3) Aviation weather sources and effects of weather on small unmanned aircraft performance; (4) Small unmanned aircraft loading; (5) Emergency procedures; (6) Crew resource management; (7) Radio communication procedures; (8) Determining the performance of small unmanned aircraft; (9) Physiological effects of drugs and alcohol; (10) Aeronautical decision-making and judgment; (11) Airport operations; and (12) Maintenance and preflight inspection procedures.   (b) A recurrent aeronautical knowledge test covers the following areas of knowledge: (1) Applicable regulations relating to small unmanned aircraft system rating privileges, limitations, and flight operation; (2) Airspace classification and operating requirements and flight restrictions affecting small unmanned aircraft operation; (3) Emergency procedures; (4) Crew resource management; (5) Aeronautical decision-making and judgment; (6) Airport operations; and (7) Maintenance and preflight inspection procedures.