The MARC Advisory Committee will be meeting January 26-28, 2021. Here are the proposals and discussion papers of potential interest to the cartographic community. Proposals 2021-03: Changes to Fields 008/21 and 006/04 for Types of Continuing Resources - This proposal redefines the codes p (periodicals), d (updating databases), and w (updating web site) and adds and defines codes b (blog), t (directory), j (journal), g (magazine), s (newsletter), and r (repository). Proposal 2021-04: Adding Subfields $0 and $1 to Field 022 - This proposals adds $0 (Authority record control number or standard number) and $1 (Real World Object URI) to the 022 Field (International Standard Serial Number). Proposal 2021-08: Defining a New Field for Encoded Supplementary Content Characteristics - This adds Field 353 Supplementary Content Characteristics to encode information on the presence of one or more bibliographies, discographies, filmographies, and/or other bibliographic references in a described item or in accompanying material. Proposal 2021-09: Recording the Mode of Issuance for Manifestations - This adds Field 334 Mode of Issuance that allows for the recording of RDA terms for issuance in the MARC bibliographic format. Proposal 2021-10: Recording the Type of Binding for Manifestations - This adds subfield $l Type of binding to Field 340 to add a Manifestation level element "type of binding" of the RDA element set. Discussion Paper 2021-DP01: Defining Subfields $y and $z for Incorrect/Canceled ISSNs in Field 490 - Currently, there is no way to indicate an incorrect or invalid ISSNs in Field 490. Since the field is a descriptive field and subfield $x for ISSNs is defined, this paper explores the necessity of adding a way to record incorrect or invalid ISSNs in Field 490. Discussion Paper 2021-DP03: Coordinates for Geographic Positioning of Structures in Images - This paper discusses use cases for geographic positioning based on geographic coordinates of structures such as monuments, buildings and sites that are depicted in images and how to code this data in the MARC Bibliographic format. It explores the use of Field 034 in records for images without pairing it with Field 255. Discussion Paper 2021-DP06: Recording Data Provenance in the MARC Formats - This paper discusses the potential ways to record where information in a bibliographic record was taken from and what agency added the information to the bibliographic records. The agenda for the meetings and the links to the full proposals and papers can be found at MAC Midwinter 2021 Agenda (Network Development and MARC Standards Office, Library of Congress) (loc.gov) <https://www.loc.gov/marc/mac/mw2021_age.html> If you have any thoughts on any of these, please let me know. Susan Moore MAGIRT representative to the MARC Advisory Committee