Tennessee Walking Horse advocates visited the White House on Wednesday hoping to present a petition asking President Donald Trump to implement a USDA rule that would ban the use action devices sometimes used on some gaited horse breeds, which was one of several regulations frozen after the administration change in January.

Before Trump took office earlier this year, the USDA approved the rule, which prohibits the use of action devices on Tennessee Walking Horses and Racking Horses at horse shows, exhibitions, sales, and auctions. It also forbids the use of boots other than soft rubber or leather bell boots and quarter boots used as protective devices as well as pads and wedges, except for those with a therapeutic purpose.

The ban on action devices was slated to take effect in February, while the other rule provisions were scheduled to become effective Jan. 1. 2018.

The rule was among many frozen by executive order when Trump took office on Jan. 20. Such freezes are frequently imposed so new administrations can review new regulations, policy-related statement, budgets, and relevant legislation