Hi Todd,
If you visit our website, under "Going Google" there are sections related to your question. I think you will find other useful information to help you guys with other guidelines related to going 1:1. Pay attention to #4 under the "Chromebook handbook" (using your chromebook at school). Teachers take the first step in calling home, then we call home and disable them if they are not bringing them to school (we don't want students using them to watch Netflix at home, but don't bother to bring them in for school work). I know we contact the dean (which handles discipline issues) if it becomes a chronic issue. Teachers fill out a google form that is pushed out to their desktops when a student does not have their CB more than once, we check this and disable/call home as needed (should be checked daily).
Devices are only lent to students if theirs is in what we call "sick bay" (being repaired due to broken screens, bad ports, keys, etc). Students must have a loaner agreement form filled out giving permission from their parents to take out a loaner while theirs are being repaired. Under no circumstances do we allow students to borrow chromebooks or chargers (this becomes a huge issue with compliance to our original expectations that they need to be responsible for bringing a fully charged CB to school each day (if they can charge their phones, they can charge their CBs). We do not want to be enablers. Managing loaners each day for students who forget them is a nightmare (we have tried doing that in the past and it does NOT work well), especially for 1500 students. Sometimes teachers allow students to use their phones if they don't have their CB on a specific day, but that is preference for the teacher.
Teachers or other staff members such as guidance counselors or admins can take out loaners or borrow a charger if they need them under special circumstances (if they need one themselves or if they are running a special event).
Hope this helps. Call me if you want to chat or need more info.
Good luck!