Rent Increase in NJ - Is Notice to Quit required?

[Ken Winter]

I tried searching for an answer and couldn't find anything on point.  This will be my first time increasing rent.  I found something from the NJDCA that says a rent increase must start with service of a Notice to Quit in order to end the current tenancy.  http://www.state.nj.us/dca/divisions/codes/publica...

But that is the only place I saw that requirement.  Others say that a letter spelling out the date, increase, options for the tenant to accept and get a new lease vs. vacating, etc. is sufficient.

1.  Is a Notice to Quit required?

2. Does it have to be personally served and signed for or is certified mail acceptable?