Recursive Construction of Nested Resolvable Designs and Associated Uniform Designs R package PGM2 version 1.2 CRAN Task View: ExperimentalDesign (https://CRAN.R-project.org/view=ExperimentalDesign) Implements recursive construction methods for balanced incomplete block designs (BIBDs), their second generation, resolvable BIBDs (RBIBDs), and uniform designs (UDs) derived from projective geometries over GF(2). It enables extraction of nested structures in multiple stages and supports recursive resolution processes, as introduced in Boudraa et al. (2013). Software Mohamed Laib <laib.med@gmail.com> Comprehensive R Archive Network (CRAN) Mohamed Laib [aut, cre], Abla Boudraa [aut], Zebida Gheribi-Aoulmi [aut] GPL-3 2025-05-27 application/tgz https://CRAN.R-project.org/package=PGM2 doi:10.32614/CRAN.package.PGM2