Every few years the USEF releases new dressage tests for eventing and 2018 marked the year in the cycle for new tests. FEI 4* Eventing Judge, Marilyn Payne, led the committee charged with designing the 2018 tests, shares some of the insight of why certain movements were incorporated into the new tests. All the new dressage tests can be viewed here.
Each level of competition has two test options: A and B. All A tests track left and all B tests track right.