Hearing Aid Compatibility 
FCC Proceeding
Expansion of "essential" phones to common areas in workplace (1988)
Common area proposal withdrawn (1989)
Expansion of rule to all phones in workplace (1990)  by May 1, 1991
Expansion delayed until 1993, 1994
March-April, 1993  11th Hour appeal  Emergency stay
Negotiated rulemaking rewrites rules (1994)