I emailed maryland dnr. Asked them too define possession limit,, this is there reply!

The Bag Limit is what's your are permitted to shootÂdaily. TheÂPossession Limit is what you are allowed to possess in total at any one time. This includes your daily bag limit and what you may have taken on another day that's in a cooler in your vehicle because you are away from home plus what'sÂin your refrigerator/freezer at home, and anyplace you would store game.