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HAL — Hyper Articles en Ligne

Overview

HAL is the French national open-access publication archive, operated by the CCSD (Centre pour la Communication Scientifique Directe) under CNRS. Founded in 2001, it is the primary mandatory deposit platform for open access to French publicly funded research publications, serving as the national infrastructure implementing the open access requirements of Ouvrir la Science, ANR Open Science Policy, CNRS Open Science, and Inserm Open Science. It accepts preprints, postprints, and full-text publications in all scientific disciplines, with deposits timestamped and permalinked. HAL integrates with European open access infrastructure via OpenAIRE, which harvests HAL metadata for EU compliance reporting.

Institutional Portals

HAL operates institutional portals for major French research organisations, each with their own branding while sharing the same underlying infrastructure. HAL-ICM (https://hal.science/ICM) is the Paris Brain Institute portal. HAL-CNRS (https://hal.science/CNRS) is the CNRS institutional portal. HAL-Inserm (https://hal.inserm.fr) serves Inserm. HAL-Sorbonne Université is at https://hal.sorbonne-universite.fr and HAL-Pasteur (https://hal.pasteur.fr) serves Institut Pasteur.

Open Access Mandates Driving HAL Deposits

Ouvrir la Science mandates open access to publications via HAL for all French publicly funded research (2018, updated 2021). The ANR Open Science Policy requires immediate open access deposit in HAL or a discipline-specific repository for all ANR-funded publications from 2022. CNRS Open Science and Inserm Open Science both set institutional mandates for their respective researchers. Horizon Europe open access requirements are satisfied via HAL through OpenAIRE harvesting.

HAL and the French Open Science Infrastructure

HAL is the publication layer of the French open science stack, sitting alongside Recherche Data Gouv (data), Software Heritage (code), and OPIDoR (DMPs).

Connections

  • European integration: OpenAIRE (HAL metadata harvested for EU open access compliance)

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