1. Short title This Act may be cited as the Identifying Barriers and Best Practices Study Act of 2019 . 2. Comptroller General study on disability and pension benefits provided to members of the National Guard and members of reserve components of the Armed Forces by the Department of Veterans Affairs (a) Study required Not later than 36 months after the date of the enactment of this Act, the Comptroller General of the United States shall complete a study on disability and pension benefits provided to members of the National Guard and members of reserve components of the Armed Forces by the Department of Veterans Affairs. (b) Elements In conducting such study required by subsection (a), the Comptroller General shall review, for the period beginning on January 1, 2008, and ending on December 31, 2018, each of the following: (1) The number of members of the National Guard and the number of members of reserve components of the Armed Forces who received disability compensation or pension provided by the Department of Veterans Affairs. (2) A comparison of each of the following between veterans who served in the National Guard or reserve components and veterans who served in the regular components of the Armed Forces: (A) The percentage of each group of such veterans with service-connected disabilities. (B) The number of veterans in each group with each disability rating. (C) The number of veterans in each group with a service-connected disability, including the number of each of the following types of such veterans in each group: (i) Pilots. (ii) Veterans who served in the special forces. (iii) Veterans who participated in the Personnel Reliability Program. (iv) Veterans who underwent diving or flight physicals as a regular component of their service in the Armed Forces and who have a muscular-skeletal or mental health condition. (D) The number of total claims for disability compensation and pension submitted, approved, and disapproved for each group of veterans. (3) An identification of common barriers for members of