I see someone mention construciton , vacant and rehab policy?

[Nate Mao]

What is the main difference? My insurance agent told me they are different and they have they those policy in place.

My question is if I bought a Construction policy? does it mean i have to build a new construction or remodeling/rehab is OK? Also if the construction begins in 2 weeks away, would the policy cover any damages happened before the construction starts? after the construction, and when I list the property on the market for sale, do I need to change the policy back to vacant policy?