POPL 2027 Call for Papers Sun 10 - Sat 16 January 2027 Mexico City, Mexico https://popl27.sigplan.org/ ============================= PACMPL Issue POPL 2027 seeks contributions on all aspects of programming languages and programming systems, both theoretical and practical. Authors of papers published in PACMPL Issue POPL 2027 will be invited – but not required – to present their work in the POPL conference in January 2027, which is sponsored by ACM SIGPLAN, in cooperation with ACM SIGACT and ACM SIGLOG. **NEW FOR 2027** - Clarification about expectations concerning mechanized proofs; see Submission Guidelines: https://popl27.sigplan.org/track/POPL-2027-popl-research-papers#submission-g... - At least one author of each paper submission must be registered as a Reserve Reviewer as per the Reserve Reviewer Policy: https://popl27.sigplan.org/track/POPL-2027-popl-research-papers#reserve-revi... See details: https://popl27.sigplan.org/track/POPL-2027-popl-research-papers ## Important Dates - Paper submission deadline: Thursday July 9, 2026 - Author response period: Mon 7 - Thu 10 Sep, 2026 - Author notification: Mon 5 Oct, 2026 - Revision deadline: Mon 26 Oct, 2026 - Final acceptance notification: Mon 9 Nov, 2026 - Camera ready deadline: Fri 20 Nov, 2026 ## Submission Site Information The submission site is https://popl27.hotcrp.com. Papers may be resubmitted to the submission site multiple times up until the deadline, but only the last version submitted before the deadline will be reviewed. There is no abstract deadline. The submission site requires entering author names and affiliations, relevant topics, and potential conflicts. Addition or removal of authors after the submission deadline will need to be approved by the Program Chair (as this kind of change potentially undermines the goal of eliminating conflicts during paper assignment). The submission deadline is 11:59PM July 9, 2026 anywhere on earth: https://en.wikipedia.org/wiki/Anywhere_on_Earth ## Scope Principles of Programming Languages (POPL) is a forum for the discussion of all aspects of programming languages and programming systems. Both theoretical and experimental papers are welcome, on topics ranging from formal frameworks to experience reports. We seek submissions that make principled, enduring contributions to the theory, design, understanding, implementation, or application of programming languages. ## Evaluation Criteria The Review Committee (aka Program Committee, PC) will evaluate the technical contribution of each submission as well as its accessibility to both experts and the general POPL audience. All papers will be judged on significance, originality, relevance, correctness, and clarity. Each paper must explain its scientific contribution in both general and technical terms, identifying what has been accomplished, explaining why it is significant and comparing it with previous work. Advice on writing technical papers can be found on the SIGPLAN author information page (https://www.sigplan.org/Resources/Author/). ## Double-Blind Reviewing POPL 2027 will use a full double-blind reviewing process (similar to the one used in recent years (POPL 2023 - 2026) but different from the lightweight double-blind process used before then). This means that identities of authors will not be made visible to reviewers until after conditional-acceptance decisions have been made, and then only for the conditionally-accepted papers. ## Important update on ACM’s new open access publishing model for ACM Conferences Starting January 1, 2026, ACM has fully transitioned to Open Access. All ACM publications, including those from ACM-sponsored conferences, will be 100% Open Access. Authors will have two primary options for publishing Open Access articles with ACM: the ACM Open institutional model or by paying Article Processing Charges (APCs). For a paper to be covered by ACM Open, the corresponding author must be affiliated with a participating institution. APC pricing for 2027 conferences is currently under review and will be finalized in June. With over 2,600 institutions already part of ACM Open, the majority of ACM-sponsored conference papers will not require APCs from authors or conferences. Authors from institutions not participating in ACM Open will need to pay an APC to publish their papers, unless they qualify for a waiver. To find out whether an APC applies to your article, please consult the list of participating institutions (https://libraries.acm.org/acmopen/open-participants) in ACM Open and review the APC Waivers and Discounts Policy ( https://www.acm.org/publications/policies/policy-on-open-access-apc-waivers-... ).