By Julian O'Neill
BBC News NI Home Affairs Correspondent
Several 100 Orange Order parades volition beryllium held crossed Northern Ireland successful a much localised Twelfth of July to effort to support gatherings smaller than usual.
Organisers person said they are mostly sticking to plans for parades of 500 radical owed to the Covid-19 pandemic.
Up to 2,000 constabulary officers volition beryllium connected work passim the time connected Monday.
The accepted parades were cancelled past year owed to the wellness emergency, and radical were asked to observe the lawsuit successful their ain homes and gardens.
The past clip the Twelfth took spot successful 2019, the policing cognition outgo £1.2m.
The Parades Commission has imposed conditions connected a fig of marches this year.
A planned nationalist protestation successful westbound Belfast was cancelled aft the Orange Order amended the projected route.
Though the lawsuit returns this year, it is not a mean Twelfth and was organised weeks agone with wellness regulations successful mind.
Even though the 500 bounds connected nationalist gatherings has since been removed, the Orange Order is sticking to its original plans for scaled-down parades.
The Parades Commission has issued determinations connected events successful Belfast, Portadown, Lurgan, Bellaghy and Rasharkin, successful immoderate instances restricting march routes adjacent flashpoint areas.
In westbound Belfast, a nationalist protestation connected Springfield Road has been cancelled aft the Orange Order dropped plans to locomotion done the gates of the Workman Avenue bid line.
In the run-up to the Twelfth, the Order urged members, bands radical and spectators to beryllium mindful of the nationalist wellness situation.
"The instauration wants everyone to bask the Twelfth, but besides to look aft each other's health," said Reverend Mervyn Gibson, Grand Lodge Secretary.
"Whether that is simply wearing a look covering, oregon regularly utilizing manus sanitiser connected the day, everyone has a portion to play."
Each year, the 12 July celebrations by the Orange Order people the day of the victory of Protestant William of Orange implicit Catholic King James II astatine the Battle of the Boyne successful July 1690.
The Orange Order was formed adjacent Loughgall successful County Armagh successful 1795, erstwhile its founding members pledged their loyalty to the royal household and swore to support the Protestant faith.
'A Twelfth adjacent home'
In June, it was announced that the 2021 parades would spell up aft discussions betwixt the Orange Order, then-First Minister Arlene Foster, Health Minister Robin Swann and Northern Ireland's main aesculapian officer.
"The existent regulations are specified that the accepted region oregon combined territory Twelfth parades are not possible," the Grand Lodge's expansive maestro Edward Stevenson said.
"As an instauration we person had to marque large sacrifice implicit the past 12 months and more, but we are present successful a amended spot and our parades tin instrumentality place, albeit successful a somewhat antithetic format to a mean year.
"This twelvemonth we volition person smaller section parades, truthful it volition beryllium a Twelfth adjacent location for astir members. This is simply a affirmative measurement towards a instrumentality to our mean afloat parades - hopefully successful 2022."