The PSNI confirmed that a man, 52, is accused of various offences including three counts of taking part in an unnotified public procession and obstructing traffic in a public place.
He is due to appear at Belfast Magistrates' Court on Friday.
The veteran victims campaigner was arrested at Markethill, Co Armagh on Wednesday.
The development came on the same day Ulster People's Forum spokesperson Jamie Bryson was arrested by officers from the Operation Dulcet probe into loyalist flag disorder.
A police spokesperson confirmed that a 23-year-old has been detained by the inquiry team in Bangor on suspicion of public order offences relating to the protests.
He is currently in custody assisting police with their inquiries.
The loyalist figure said on Wednesday that he would not be handing himself into police, after raids were carried out on his house in Donaghadee.
Officers from the Operation Dulcet inquiry team had the power to arrest Mr Bryson on the spot when they called at his door in North Down on Wednesday morning.
But Mr Bryson was not home at the time, which prompted police searches of offices in the nearby Kilcooley Estate.
They also towed away his car.
The taskforce is investigating offences linked to loyalist demonstrations that have been ongoing since December, in response to a council vote to reduce the number of days that the Union flag flies at City Hall.