Which act revised the Hatch Act to be less restrictive in 1993?

The question pertains to the revisions made to the Hatch Act in 1993, which focused on regulating the political activities of federal employees. The Hatch Act of 1939 originally set strict limitations on political engagement for federal workers. However, the 1993 amendment revised these restrictions, making it less stringent and allowing employees more freedom to participate in political activities, such as running for office and engaging in political campaigns, as long as those activities don't interfere with their official duties.

This amendment aimed to strike a balance between maintaining the integrity of federal service and protecting the rights of employees to engage in the democratic process. The other options do not directly pertain to the revisions of the Hatch Act: the Civil Service Act established principles for the merit-based system of federal employment, Executive Order 10450 dealt with security requirements for federal employment in the 1950s, and the Employment Rights Act does not directly relate to the Hatch Act's provisions. Thus, the correct identification of the Hatch Act of 1939 as the foundational legislation for amendments is essential for understanding the evolution of personnel security regulations concerning political activity.