III International Conference on Applied Physics, Information Technologies and Engineering (APITECH-III 2021), 24 September – 3 October 2021, Krasnoyarsk, Russian Federation All papers published in this volume of Journal of Physics: Conference Series have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.• Type of peer review: Double-blind All papers came through the basic review which included an initial technical criteria check (paper field, structure of submission, adherence to the submission instructions, English language usage and a check for the similarity rate). Any papers out of the scope or containing plagiarism, including self-plagiarism, were rejected.We used a double-blind system for peer review; both reviewers’ and authors’ identities remained anonymous. The submitted papers were reviewed by at least two experts: one editorial staff member as well as at least one external reviewer. The third/fourth reviewer is involved in case two reviewers have disputes about the content of the papers or the authors do not agree with the review result. The review process took from 7 to 15 days as a rule. The reviews were conducted to the professional and scientific standards.The decision to accept or reject the paper was based on the suggestions of reviewers. Acceptance/rejecting notifications were sent to the corresponding author(s).• Conference submission management system: Conference submission is carried out through the conference management system which was developed by the Organizer. It easy to use, and has features to make it suitable for simultaneous conference calls.More than 23,500 registration forms have been already processed by the system which showed it stability and flexibility.The conference management system is integrated with the conference website of the Organizer which helps the Organizer to cope with the complexity of the submission, reviewing, refereeing and accepting processes. The current version supports:1. management of the access of reviewers and editors to papers;2. automatic registration for conferences and paper submission;3. list of the current, forthcoming and held conferences with all necessary information;4. list of all conference materials with online presentations and/or video reports of participants, list of published proceedings with direct links to publications and journals;5. sending emails to programme committee members, reviewers and authors;6. preparation and publishing of conference programmes;7. all authors submitting the papers are assumed to accept the terms of Publication Licence;8. all requirements for papers, templates and sample papers are accessible for the authors.• Number of submissions received: 615• Number of submissions sent for review: 615• Number of submissions accepted: 368• Acceptance Rate (Number of Submissions Accepted/Number of Submissions Received X 100): 59• Average number of reviews per paper: 2• Total number of reviewers involved: 42• Any additional info on review process: The Checklist for the reviewers included the following criteria: relevance to the scope of the conference topics, the scientific quality, assessing the errors, organisation of the paper, the title, the references, the level of the English language, the quality of the figures and tables, etc.The reviewers could give the following recommendation: to publish the paper as it is, to publish it after mandatory/optional minor/major revision, to reject the paper.• Contact person for queries: Anna Voroshilova, Krasnoyarsk Science and Technology City Hall, 61, Uritskogo Street, Krasnoyarsk, 660049, Russia, E-mail: krasnio@bk.ru. Tel + 7 913 538 6990