The phrase "added a stipulation that" is correct and usable in written English.
It can be used when referring to the inclusion of a specific condition or requirement in an agreement or document.
Example: "The committee added a stipulation that all members must attend the annual meeting to remain in good standing."
Alternatives: "included a condition that" or "imposed a requirement that".
In a 2012 ruling, Griesa added a stipulation that would essentially penalize financial institutions doing business with Argentina — specifically, the Bank of New York, which administered Argentina's payments to the bondholders it had already agreed to pay back.
The Swiss economist Silvio Gesell, who originally proposed a scheme of "stamped money" at the start of the last century, added a stipulation that balances unspent after a month should be taxed, to discourage hoarding.
The National Football League today reduced the fine from $40,000 but added a stipulation that Moss would have to pay the difference, in addition to any future fine, if he has another disrespectful encounter with an official.
He added a stipulation that if Raven won he gained a future NWA World Heavyweight Championship match, but if Raven lost, he would be fired from TNA. Raven faced Sean Waltman at the show in a Raven's Rules match.
Moreover, he says, the Consumer Product Safety Improvement Act of 2008 19 added a stipulation that the CPSC must turn all voluntary toy standards into mandatory standards if agency staff deem the change to be in the best interests of the safety of children; this conversion can be achieved in a matter of weeks.
Regal added a stipulation to the match that if Cena won, he would be added to the WrestleMania match between Triple H and Orton, making it a Triple threat match, a standard match that involves three wrestlers.
On the July 8 episode of SmackDown, Christian's lawyers in the storyline added a stipulation to the match that if Orton was disqualified or there were poor officiating, he would lose the title to Christian.
Then I added a stipulation.
In 2011, it added a further stipulation that first-year residents could only work 16 consecutive hours and upper-year residents could only work 24 hours at a stretch.
Some businesses have been advertising job openings with a stipulation that the unemployed need not apply.
