lab puppy thats a year old still puppy biting

Question
What do you do to stop a year old lab from still biting like a puppy. And what to do when people come over and lab jumps and puppy bites.

Answer
While it takes time to teach a puppy not to bite or jump up on you, it is even harder teaching them not to jump up on and bite others.  You have to get people to help teach them.  It is easier when the dog is on leash.  Even so, we are still struggling with our 5 month old Lab.

Consistently is very important in correcting jumping and other problems.  Quickly correcting him each and every time he jumps on somebody is very important.  He must never get the affection he wants.  A number of things have been used.  One of the most gentle is to grab his front paws and hold him up.  The traditional knee to the chest or step on his paws are fading from use.  As part of the the trend away from negative methods, just step backwards leaving his front feet to fall to the floor.  After a few tries, the dog may just stand there looking confused.   

Young Labs, which I know best, and other puppies tend to very bad about
biting.  You see a litter of them, and all the ones that are awake are biting
another one or themselves.  I am not even sure they realize that when they are
alone, if they quit biting, they would quit being bitten.  At 3 to 4 months
they are getting their adult teeth, and it seems they spend every waking
moment biting or chewing.  One thing you can do at that stage is to knot and wet a piece of cloth.  Then freeze it.  The cooling will soothe the gums.  Only let the puppy have it when you are there to watch it.  I maintain a Lab's favorite chew toy is another
Lab.  Otherwise they settle for any person they can.  They keep hoping to find
one that won't yelp,  jerk their hand away, and leave.

You just have to keep on correcting them, hundreds of times, not dozens.
Provide sturdy, safe toys such as Kongs and Nylabones.  Avoid things they can
chew pieces off and choke on them.  Keep them away from electrical cords.
Crates are essential for most young Labs and other dogs.