Sony BMG was responding to reports of a photograph of Spears driving in Malibu, California, with Sean Preston, one, in the back facing forward not back.
Spears, who is now pregnant with her second child, was in "total compliance" with Californian law, Sony BMG said.
In February, she was photographed driving with her son on her lap.
The 24-year-old later said she was frightened by paparazzi chasing her but admitted she had made a mistake on that occasion.
In a statement, Sony BMG said state law required that "all children under the age of six or weighing less than 60lbs be in safety seats in the back seat of the car".
It added rear-facing car seats were compulsory neither in California nor many other parts of the US.
"In fact, there are only 10 [states] that require a child to be in a rear-facing car seat, and in two of those states it is not required if the infant is more than 20 lbs. Britney's son Sean weighs over 20 lbs."
Some Polls have also been done by Star and Us Weekly and here are the current results:
Us Weekly
Is everyone being too hard on Britney Spears?
Yes: 65%, No: 35%
VOTE NOW
Star
Has Britney Spears been criticized enough?
Yes: 67.1%, No: 32.9%
Are you sympathetic toward Britney?
Yes: 51.9%, No: 44.1%
Brit is also winning People's Who's the all-time Most Beautiful woman? currently, and Sean also won cutest baby of the year for Star Magazine!


...now that she's married to him and they're starting to pump out a couple kids...she's reminding me more and more of the Osbornes...what happens when trashy people have way too much money.


