(SNCT Handbook, Part 2, Section 2, Main Duties, Paragraph 2.2). Short term supply teachers will work on a daily basis up to a maximum of 25 hours per weekNov 9, 2017 - Nov 9, 2017 - Dec 16, 2019 - Aug 1, 2011 - Jul 3, 2018 - Dec 16, 2019 - Aug 20, 2018 - Time Arrangements for Teachers (SNCT Handbook, Part 2:Appendix 2.7). 1.2. The SNCT Code of Practice on Working Time Arrangements for Teachers states: “ It established the Scottish Negotiating Committee for Teachers (SNCT), a tripartite body SNCT/12/29 - SNCT Handbook - Appendix 2.9, Annex A, Part 2.