I know that there are charts for getting an estimate of the weight of a bass according to its length. I recently caught a 19" smallie and I had a problem with my scales. I am wondering where I can get these numbers for smallmouth and largemouth. Also, how accurate are these charts. My club has decided to have a CMR tourney do to the fact that weight-in tourneys are not allowed through a few weeks of the season in order to allow the bass to spawn. Does anyone have any info or thoughts on this?

go to the "tacklebox" in the menu bar at the top of this page.  Click on "Fish calculator"

This particular calculator is slightly more accurate than most, it was "tweaked" by the big guy.

Thanks LB. That's a great tool. I had no idea that the site had it. Unfortunately I don't didn't measure the girth, but it was slightly overweight due to the time of year. It probably was my new PB (formerly 3-13, smallie), but I can't, in good concience call it that... or can I. Should I say my new PB is 3-14? JK. I'll stick with my 3-13. Thanks again LB.

You bet  

You could use the New York charts, but keep in mind that these can be off significantly depending on time of year and other factors.

http://www.dec.ny.gov/outdoor/9222.html

I wouldn't count a PB unless it was weighed, but it's a personal thing. If you're comfortable with it, go for it.