Which abbreviation refers to the 2nd set of published federal appellate decisions?

The abbreviation that refers to the second set of published federal appellate decisions is "F.2d." This designation stands for the Federal Reporter, Second Series, which contains opinions from the United States Courts of Appeals from 1924 to 1993. Using this series allows legal professionals and researchers to easily reference and locate appellate decisions within this time frame.

The Federal Reporter is an official publication of the decisions of federal appellate courts. The first series, referred to as "F.1," covered cases decided prior to the establishment of "F.2d." Following the "F.2d," the third series, known as "F.3d," was started to compile decisions from 1993 onward. This methodical organization into series provides clarity and ease of navigation for those working within the legal field, making "F.2d" the correct reference for the specific request regarding the second set of federal appellate decisions.