ASPET has implemented new author guidelines for displaying data and reporting data analysis and statistical methods. The guidelines apply to Drug Metabolism and Disposition, The Journal of Pharmacology and Experimental Therapeutics, and Molecular Pharmacology. The Instructions to Authors for these journals have been revised accordingly. The goal of these changes is for authors to provide greater granularity in the description of what has been done and found, and they continue ASPET's efforts to improve the robustness and transparency of scientific reporting. The changes are summarized and explained in a commentary by Michel, Murphy, and Motulsky published in the three journals. The commentary is freely accessible to all at: