provided by Chris Giesting
- The 4×100 exchange zone is now 30 meters.
- The fly zone is now able to exchange the baton.
- World Relays will be the first full weekend in May.
Vertical and Horizontal Jumps:
- Jumpers have 30 seconds per attempt now, with an extra minute on attempts at WR height.
USA Outdoors in 2019 will be July 25-28.
Proposed standards for 2018 USATF Indoor Championships: