Modified List of Classes

About:

List of publications available for selection by depository libraries. Has additional fields including Sort by SuDoc, Agency, Sub-Agency, PDT List, and PDT Quantity.

File last updated:

05/15/2025

Definitions:

Formats:

E = Electronic media (unspecified)

EL = Online (Electronic Library)

MF = Microfiche

P = Paper

PDT List = Print Distribution Titles List

PDT Quantity:

20 = 20 copies are being deposited in Federal depository libraries

50 = 50 copies are being deposited in Federal depository libraries

UNL = Unlimited distribution  - there are no limits to how many Federal depository libraries may select it