By Rita Chioma

After months of deliberation, Brad Pitt and Angelina Jolie’s custody agreement has been approved by a judge.

Court documents obtained by ET reveals that the estranged couple’s legal agreement was approved on Dec. 2, and grants Jolie physical custody of their six children — Maddox, 15, Pax, 13, Zahara, 11, Shiloh, 10, and twins Knox and Vivienne, 8, an issue that, Jolie and Pitt had previously agreed to, on Oct. 26.

Additionally, a team of five mental health professionals are helping the family with “safe harbour therapy.”

Meanwhile, Pitt will continue to have agreed-upon therapeutic visitations with the kids, as determined by the family’s therapist who “Shall at all times consider the best interests of the minor children,” according to the documents. Pitt will also continue to participate in random drug and alcohol testing, as well as weekly individual and group therapy. The Jolie-Pitt children will also continue to participate in individual counseling.

“Originally, Pitt had volunteered to do the drug and alcohol testing himself,” a source tells ET. “But now that a judge has signed off on these docs, it has become mandatory and cannot be reversed without another court filing.” The source also reveals, “Brad has not seen his children alone without a monitored therapist since the plane incident,” adding, “Angelina has not left the children’s side since the plane incident. She still has not completed her film [First They Killed My Father]. She has been with them the whole time trying to make sure they heal.”

As for if Pitt will see the children for the holidays, that remains unclear. “If a child says they don’t want to see Brad on Christmas, the psychiatrist isn’t going to force them,” the source says. “That’s the whole purpose of this agreement.”

A separate source tells ET that the legal custody agreement is voluntary and only temporary.  “It was agreed upon several months ago, which has continued,” the source says.

The source also notes this agreement can be changed if Pitt decides to petition the court.

After looking into the aforementioned Sept. 14 plane incident, both the FBI and the Department of Child and Family Services closed their investigations on Pitt, clearing the 52-year-old actor of the child abuse accusations against him, and determining no charges would be filed.

“In response to allegations made following a flight within the special aircraft jurisdiction of the United States which landed in Los Angeles carrying Mr. Brad Pitt and his children, the FBI has conducted a review of the circumstances and will not pursue further investigation,” the FBI said in a statement to ET in November. “No charges have been filed in this matter.