Electrician Question on grounding outlets

[SideShow Bob]

What is the age of the house. If it's old enough it shouldn't be expected that the outlets are grounded.

Depending on when the remodel work was done, it should have been done to that year's code.
As far back as I can recall, outlets were to be grounded.

[Marlin]

Depending on when the remodel work was done, it should have been done to that year's code.
As far back as I can recall, outlets were to be grounded.

'72-'73 sticks out for some reason. My sisters house was built in that timeframe, it has grounded outlets. Most every pre '70 house I've been in has had two prong.