The new CBA laid out some changes to team offeason training activities (OTAs) and wait until you see how detailed the do's and don'ts are? Hat Tip to Dave Fucillo over at Niner's Nation for the

The Panthers will get a 10-week window for their nine-week offseason programs. Programs cannot exceed four workouts per player in a week and they are limited to weekdays. These initial practices are entirely voluntary, with mandatory minicamps not starting until June.

There will be three phases to the workouts, all spelled out in the CBA. Phase one will cover the first two weeks, with players limited to strength and conditioning or injury rehab. The phase will only allow onto the field full-time or part-time strength and condition coaches that otherwise have no other coaching responsibilities. No footballs can be used, except that quarterbacks may elect to throw to receivers provided they are not covered by any other player. The players cannot wear helmets during phase one.

Phase two covers the next three weeks of the offseason workout program. All coaches are allowed onto the field and on-field workouts can include individual player instruction and drills. However, there can be no live contact or team offense versus team defense drills and players cannot wear helmets during this phase.

Phase three covers the next four weeks of the workout program, which can include up to ten days of organized team activities. This provides a chance for more instruction and helmets, but players cannot wear any pads, including shells.

Wondering who is there? Thanks to Twitter we have a few names to report...after the jump...

In no particular order, those in attendance are:

Good day today, we puttin in work together so u know we gon shine together #LetsGetIt #Panthers

— Sherrod Martin (@SherrodMartin23) April 16, 2012

Officially back at it. It is great to see all the guys back.

— Gary Barnidge (@garybarnidge) April 16, 2012

Great to be back working out with the fellas today.. Exciting times💪 🏃💨🏈

— Kealoha Pilares (@kealohapilares) April 16, 2012

Of course this guy is there:

It starts today in the QC. Building a championship one brick at a time. #letsgetit #PANTHERS.

— Jon Beason (@jonbeason) April 16, 2012

First day of workouts with my buds! Juiced to put in work with all the fellas. Here's where we lay the foundation together. #BuildItUpBaby

— Jordan Senn (@JordanSenn57) April 16, 2012

Day1 of workouts, back at it! A lot to prove in 2012

— sione fua (@sionefua) April 16, 2012

Now here's some that are not in attendance based on recent tweets suggesting they are somewhere else:

Just watched that Tupac performance from #Coachella WOWWWW. I just got mindf***ed

— Darius Butler (@DariusButler27) April 16, 2012

Now I'm not faulting Butler for not being there, it is voluntary after all. Besides, who's to say he won't be there tomorrow?

Help keep us updated on who is in attendance.

I'm sure Cam is there and Smitty but just haven't tweeted about it.

Update [Note by Jaxon, 04/16/12 2:28 PM EDT ]: Darius Buter is there, an earlier tweet announced his arrival

Also here's some more:

Good to be back at wit my teammates. first day of team workouts #purpose

— Jonathan Stewart (@Jonathanstewar1) April 16, 2012

Day one at the office not too bad.!!!!!

— Byron Bell (@TheRealByronB) April 16, 2012