To register for such a device, residents would take part in an orientation seminar given by the Vault's Overseer to explain the functions and daily life enhancements provided by the Pip-Boy, along with filling out personal information in the Personal Information Processor Responsibility Form regarding such things as hand dominance, personal preferences, arm circumference, and vault jumpsuit measurements.
Pip-Boys were standard equipment issued to all Vault-Tec Corporation Vaults.