The referees have been confirmed for this weekend's games in the Ladbrokes Premiership, Championship, League 1 and League 2.
Ladbrokes Premiership - Saturday
Dundee v Heart of Midlothian - Craig Thomson
Motherwell v Dundee United - Bobby Madden
Ross County v Hamilton Academical - Andrew Dallas
St Johnstone v Inverness CT - Willie Collum
Ladbrokes Premiership – Sunday
Aberdeen v Kilmarnock - Steven McLean
Partick Thistle v Celtic - John Beaton (BT Sport, 12.30pm)
Ladbrokes Championship - Friday
Rangers v St Mirren - Kevin Clancy (BT Sport, 7.45pm)
Ladbrokes Championship - Saturday
Dumbarton v Hibernian - Don Robertson
Morton v Falkirk - Alan Muir
Queen of the South v Alloa Athletic - Euan Anderson
Raith Rovers v Livingston - Mat Northcroft
Ladbrokes League 1 - Saturday
Airdrieonians v Forfar Athletic - Kevin Graham
Albion Rovers v Ayr United - Alan Newlands
Brechin City v Dunfermline Athletic - John McKendrick
Cowdenbeath v Stranraer - Gavin Ross
Peterhead v Stenhousemuir - George Salmond
Ladbrokes League 2 - Saturday
Arbroath v Elgin City - David Munro
Berwick Rangers v Montrose - Gavin Duncan
East Stirlingshire v East Fife - Mike Roncone
Queen's Park v Annan Athletic - Grant Irvine
Stirling Albion v Clyde - Steven Kirkland