Proof New Tenant Transferred Utilities Prior to Move-In

[Justin Stephens]

I'm curious how most landlords expect the tenant to prove they have transferred the utilities before you hand over the keys?  Do you require them to bring emails / confirmation numbers / etc?  (not sure what all there could be)  Or, do you call the utilities on your own to ensure they are scheduled to be transferred?   Or, is there another option?  Thanks in advance!