Octomom -- Authorities Are Cool with My WEED Habit

Octomom claims officials have given her the green light to get high on pot ... without fear of losing her 14 kids ... simply because she has a PRESCRIPTION for the green stuff ... TMZ has learned.

In a voicemail obtained by TMZ, Nadya Suleman explains how she told officials from the L.A. Dept. of Children and Family Services about her habit of indulging in a pot cookie every now and then.

Suleman says, "I told them the truth. I got my medical marijuana card, I don’t smoke 'cause it’s disgusting, disgusting and I could say in the past I have tried it, it’s sick."

"But once in a while in the past I have had a cookie ... and they said, 'Well you have your card ...'"

Octo is clearly referring to her medical marijuana prescription ... which sorta kinda makes it legal for her to use cannabis in the State of California.