NFL playoff OT rules: What prompted league to enforce changes ahead of Wild Card round?
NFL owners APPROVE proposed changes to playoffs, Insider EXPLAINS
Owners approve AFC neutral site playoff proposals
NFL owners approve rule change for overtime in the playoffs
NFL owners approve playoff plan after Bills-Bengals cancelled - The Globe and Mail
NFL Owners Approve Changes to AFC Playoff Structure
NFL owners approve 14-team playoff format - Pats Pulpit
NFL owners approve modification to the AFC playoffs
NFL owners approve rule change for OT in playoffs