Celtic and Rangers 'B' teams are set to return to the Lowland League next season.
Cumbernauld Colts and East Kilbride have both competed with the Glasgow pair this season, with ex-EK boss Chris Aitken pleased with their impact.
The reserve sides were billed a pilot scheme in order to develop young Scottish players on a one-season basis.
Despite opposition from several quarters - including those in the West of Scotland Football League - Lowland clubs have voted strongly in favour of Celtic and Rangers, though they will still not be permitted to be promoted or relegated.
A statement from the fifth-tier read: "The member clubs of the Scottish Lowland Football League voted on the potential inclusion of guest clubs for season 2022/23.
"A comfortable majority of 11-4 indicated a preference for their involvement, having taken two weeks to weigh up a presentation on the topic.
"While conscious it is, understandably, a divisive and emotive subject, the overriding feeling is their presence has been of benefit in a commercial sense while there are promising early indications of young, emerging Scottish talents benefiting from early exposure to senior football in a competitive environment.
"It is important to note that guest clubs will not be eligible for promotion. Nor will they hamper the ability of clubs to be promoted to or relegated from the Lowland League.
"This has been a democratic process, with conversation and debate encouraged before any outcome was established.
"The board of the SLFL, and member clubs, remain committed to making a positive impact within our communities and Scottish football as a whole, and will maintain an open mind to any initiatives that support those aims."
Celtic and Rangers sit second and fourth in the league respectively at present. Last month, their derby match at Ibrox broke the Lowland League attendance record.
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