This checklist provides a “BASIC 3 STEP” procedure for sizing, selecting and installing a natural gas generator system. This backup power generator checklist can be used for business or home power generators. This checklist should be used ONLY AS A GUIDE and IS NOT INTENDED to be mistaken for, or to replace professional generator sizing, selection and design data offered by a qualified Standby Generator System Contractor. It is STRONGLY recommended no purchase or installation of a standby generator system be made without confirmation of the results obtained herein by a qualified Standby Generator System Contractor.