http://www.legislation.gov.uk/eur/2017/1485/article/1Commission Regulation (EU) 2017/1485 of 2 August 2017 establishing a guideline on electricity transmission system operation (Text with EEA relevance)Commission Regulation (EU) 2017/1485Commission Regulation (EU) 2017/1485 of 2 August 2017 establishing a guideline on electricity transmission system operation (Text with EEA relevance)King's Printer of Acts of Parliamenthttps://webarchive.nationalarchives.gov.uk/eu-exit/https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32017R1485texttext/xmlen2024-11-13Expert Participation2024-10-01 PART I<Strong>GENERAL PROVISIONS</Strong>Subject matterArticle 1For the purpose of safeguarding operational security, frequency quality and the efficient use of the interconnected system and resources, this Regulation lays down detailed guidelines on:requirements and principles concerning operational security;rules and responsibilities for the coordination and data exchange between TSOs, between TSOs and DSOs, and between TSOs or DSOs and SGUs, in operational planning and in close to real-time operation;rules for training and certification of system operator employees;requirements on outage coordination;requirements for scheduling between the TSOs' control areas; andrules aiming at the establishment of a ... framework for load-frequency control and reserves.Word in Art. 1(f) omitted (E.W.S.) (31.12.2020) by virtue of The Electricity Network Codes and Guidelines (System Operation and Connection) (Amendment etc.) (EU Exit) Regulations 2019 (S.I. 2019/533), reg. 1(2), Sch. 1 para. 2 (as amended by S.I. 2020/1016, regs. 1(2), 6(2)); 2020 c. 1, Sch. 5 para. 1(1)