The Glastonbury, Leeds, and Reading Festivals will all conduct drug testing, according to the organizers.
Following its absence from Manchester's Parklife, there were concerns that the service wouldn't be present at UK festivals this year.
However, Glastonbury and Festival Republic, which organizes events like Leeds and Reading, say they'll continue to conduct "back-of-house" testing.
It's not as clear how things will play out for smaller events that previously relied on a charity to conduct their testing.
The Secret Garden Party (SGP) is one event that adamantly states that it will not be conducting drug testing this year.
Front-of-house testing for the general public was first made available in the UK in 2016 at the boutique festival in Cambridgeshire.
The last time it occurred at a UK festival was in 2018, but here, people can have their drugs tested to ensure they're safe.
Back-of-house testing, which involves checking confiscated or turned-in drugs behind the scenes and sending out alerts if problems are discovered, has been used at events ever since.
It was supposed to return to his festival this year, but it won't be happening now, SGP boss Freddie Fellowes tells BBC Newsbeat.
Similar to Parklife, who had tests scheduled but scrapped them 48 hours before the event, the circumstance is similar.
The event's creator from Manchester, Sacha Lord, claimed that he was informed that a special license would be required this year and blamed a "u-turn" by the government.
The Home Office, which oversees drug laws and policing, claims that nothing has changed.
This year, as in previous years, back-of-house testing "on drugs which have been surrendered or seized" will be done, according to Glastonbury Festival.
It said in a statement to Newsbeat that "the results of these tests are used to inform appropriate healthcare messaging.".
Additionally, Festival Republic CEO Melvin Benn stated to BBC Radio Berkshire that he was "confident" Leeds and Reading's testing procedures "meet all the government requirements".
According to information provided to Newsbeat, larger festivals contract with private companies for their testing.
However, smaller festivals have in the past used The Loop, a drug charity, to conduct their tests.
Parklife and SGP executives both told BBC Newsbeat that they had reached agreements with the police and local councils that allowed them to accomplish this.
Drug testing companies are required to have a license under regulations that have been in place since 2001.
However, festivals claim that this is the first time they have been informed that they will need a separate permit and that the process could take three months.
And Freddie claims that the 20–23 July timeframe for SGP is insufficient.
According to Freddie, harm reduction has advanced more than ten years in the current situation.
Just to be completely honest, people do use recreational drugs. And as the festival's organizer, I have no power to reverse that. ".
The festival "will be responding by increasing the number of eyes and ears we have out on welfare," according to Freddie, because there were no tests this year at SGP.
He believes there is a dearth of precise instructions and a "complete unwillingness from the Home Office to engage" in the discussion with anyone on the front lines.
Our position hasn't changed, according to a Home Office spokesperson. To test for controlled drugs, including at festivals, drug testing companies need a license.
"We have always been clear about this requirement, and law enforcement has always had a duty to uphold this legal requirement.
We keep the lines of communication open with any prospective applicants.
"Festivals looking to test for drugs off-site this summer must work with the police and a drug-testing provider licensed by the Home Office.".
Sacha Lord has informed Newsbeat that he will be meeting with attorneys and other festival executives to discuss suing the Home Office.
The Loop told Newsbeat that it was unable to comment.
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