Final answer:
The time designated for public input on administrative agency actions is known as the public comment period, a crucial aspect of responsive bureaucracy.
Step-by-step explanation:
The time allowed for the public to express its views and concerns regarding an action of an administrative agency is known as the public comment period. During this process, agencies like the FCC implement "notice and comment" rulemaking, where they publish proposed rules and invite public feedback. This public involvement is a cornerstone of a responsive bureaucracy, opening government records and efforts to encourage citizen participation and testimony on various proposals.