PIGWEB is a European project that was launched on March 1, 2021. This five-year project gathers 16 partners from 10 different countries and fully embraces the European Green Deal, the ambition of the European Commission to make Europe the world’s first climate-neutral continent by 2050. To identify levers that can be used to achieve the goals of the Green Deal, effective and convenient access to leading research infrastructures is crucial. Therefore, one of the major features of PIGWEB is the transnational access (TNA) program, allowing external academic and private researchers to access the partners’ infrastructures through the submission of research proposals. A budget of about 1.5 million euro is reserved to provide free access to top-quality pig research installations across Europe in an easy and transparent way. In total, 28 experimental pig research installations are available. A two-stage process is used to select the TNA applications. For the first stage, a general proposal is expected, whereas in the second stage, a detailed proposal is submitted. First-stage proposals are reviewed based on their rationale, scientific quality, and valorisation strategy. The first of the three TNA calls, launched in September 2021, was a great success: 20 first-stage proposals were submitted. In general, the proposals were of very high quality and addressed different research topics offered through this call, with a strong interest in performance trials. Of the 20 first-stage proposals submitted, 11 have been selected to proceed to the second stage to submit a full proposal. The main selection criteria for the second stage are the scientific and ethical soundness of the proposal, together with the practical and financial feasibility. The second call will be launched in September 2022. First-stage proposals should be submitted before the end of December. More details on the installations offered, the eligibility and the procedures to be followed are available on the project website https://www.pigweb.eu/call-for-proposals.