Bumper-to-Bumper Agreement (B2B) (Per Year) A premium maintenance program for out-of-warranty Noritsu equipment. • Unlimited labor required for repair. • Unlimited Parts required for repair. • Two Preventive Maintenance Calls per year (up to 4 hours each on AgX MB equip only) • Free unlimited access to NAC’s Customer Service Desk. • Free “Priority Shipping” for emergency parts. • Free Software Upgrades.