The camp has a 'zero tolerance' drug and alcohol policy. [=drugs and alcohol are not allowed at the camp and anyone found with drugs or alcohol will be punished]
The police announced that there will be 'zero tolerance' for looters. [=anyone caught looting will be punished as harshly as possible]
New legislation will 'zero out' further funding for the project. [=will completely eliminate further funding for the project]
(..) Go on. Where are you going? There's something... ...your mom and I have to do. What is this? "Zero, zero, decay rate algorithm." Yeah, one sec, one sec. Come in. You okay? - Yeah. What's up? - Oh, my God. (..)2012 The Amazing Spider-Man