See also the FGDC to USMARC crosswalk.
The USMARC formats (U. S. Machine Readable Cataloging) are standards for the representation and communication of bibliographic and related information in machine-readable form. A USMARC record involves three elements: the record structure, the content designation, and the data content of the record.
The FGDC standard specifies the information content of metadata for a set of digital geospatial data. The purpose of the standard is to provide a common set of terminology and definitions for concepts related to these metadata.
The following table was derived from the crosswalk by Elizabeth Mangan, Geography and Map Division, Library of Congress.
USMARC field names will be added to the following table as time permits.
| USMARC tag | FGDC tag | FGDC name |
| 001 | ||
| 005 | ||
| 034 b | ||
| 034 d | 1.5.1.1 | west bounding coordinate |
| 034 e | 1.5.1.2 | east bounding coordinate |
| 034 f | 1.5.1.3 | north bounding coordinate |
| 034 g | 1.5.1.4 | south bounding coordinate |
| 034 s | ||
| 034 s | 1.5.2.1.1 | g ring latitude |
| 034 t | ||
| 034 t | 1.5.2.1.2 | g ring longitude |
| 035 a | ||
| 037 c | ||
| 037 c | 6.4.3 | fees |
| 037 c | 6.4.5 | turnaround |
| 037 c | 9.3.1 via 6.7 | beginning date |
| 037 c | 9.3.2 via 6.7 | beginning time |
| 037 c | 9.3.3 via 6.7 | ending date |
| 037 c | 9.3.4 via 6.7 | ending time |
| 037 f | 6.4.1 | non-digital-form |
| 037 f | 6.4.2.2.2.1 | offline media |
| 037 g | 6.4.2.1.1 | format name |
| 037 g | 6.4.2.1.2 | format version number |
| 037 g | 6.4.2.1.3 | format version date |
| 037 g | 6.4.2.1.7 | transfer size |
| 037 g | 6.4.2.2.2.2.1 | recording density |
| 037 g | 6.4.2.2.2.2.2 | recording density units |
| 037 g | 6.4.2.2.2.3 | recording format |
| 037 h | 6.4.2.1.4 | format specification |
| 037 n | 6.2 | resource description |
| 037 n | 6.4.2.1.5 | format information content |
| 037 n | 6.4.2.1.6 | file decompression technique |
| 037 n | 6.4.2.2.2.4 | compatibility information |
| 037 n | 6.4.4 | ordering instructions |
| 037 n | 6.5 | custom order process |
| 037 n | 6.6 | technical prerequisites |
| 045 b | ||
| 045 b | 9.1.1 | calender date |
| 045 b | 9.3.1 | beginning date |
| 045 b | 9.3.3 | ending date |
| 099 a | ||
| 100 a | ||
| 100 d | ||
| 100, 110, 111, 700, 710, 711 | 8.1 | originator |
| 110 a | ||
| 110 b | ||
| 250 | 8.5 | edition |
| 260 a | 8.8.1 | publication place |
| 260 b | 8.8.2 | publisher |
| 260 c | 8.2 | publication date |
| 260 c | 8.3 | publication time |
| 270 l | 10.7 | contact facsimile telephone |
| 270 a | 10.4.2 | address |
| 270 b | 10.4.3 | city |
| 270 c | 10.4.4 | state or province |
| 270 c | 10.4.5 | postal code |
| 270 d | 10.4.6 | country |
| 270 h | 10.6 | contact tdd/tty telephone |
| 270 i | 10.4.1 | address type |
| 270 k | 10.5 | contact voice telephone |
| 270 m | 10.8 | contact electronic mail address |
| 270 p | 10.1.1 | contact person |
| 270 q | 10.1.2 | contact organization |
| 270 q | 10.3 | contact position |
| 270 r | 10.9 | hours of service |
| 270 z | 10.10 | contact instructions |
| 300 a | ||
| 300 b | ||
| 300 c | ||
| 300 e | ||
| 310 c | 1.4.2 | maintenance and update frequency |
| 342 a | 4.1.2.2.1 | grid coordinate system name |
| 342 a | 4.1.4.1 | horizontal datum name |
| 342 a | 4.2.1.1 | altitude datum name |
| 342 a | 4.2.2.1 | depth datum name |
| 342 a, 255 b | 4.1.2.1.1 | map projection name |
| 342 b | 4.1.1.3 | geographic coordinate units |
| 342 b | 4.2.1.3 | altitude distance units |
| 342 b | 4.2.2.3 | depth distance units |
| 342 c | 4.1.1.1 | latitude resolution |
| 342 d | 4.1.1.2 | longitude resolution |
| 342 e | ||
| 342 e | 4.1.2.1.2.1 | standard parallel |
| 342 e | 4.1.2.1.2.12.1 | |
| 342 e | 4.1.2.1.2.12.1 | oblique line latitude |
| 342 f | 4.1.2.1.2.12.2 | |
| 342 f | 4.1.2.1.2.12.2 | oblique line longitude |
| 342 g | 4.1.2.1.2.2 | longitude of central meridian |
| 342 g | 4.1.2.1.2.8 | longitude of projection center |
| 342 h | 4.1.2.1.2.3 | latitude of projection origin |
| 342 h | 4.1.2.1.2.9 | latitude of projection center |
| 342 i | 4.1.2.1.2.4 | false easting |
| 342 j | 4.1.2.1.2.5 | false northing |
| 342 k | 4.1.2.1.2.10 | scale factor at center line |
| 342 k | 4.1.2.1.2.14 | scale factor at projection origin |
| 342 k | 4.1.2.1.2.17 | scale factor at central meridian |
| 342 k | 4.1.2.1.2.6 | scale factor at equator |
| 342 l | 4.1.2.1.2.7 | height of perspective point above surface |
| 342 m | 4.1.2.1.2.11.1 | azimuth angle |
| 342 n | 4.1.2.1.2.11.2 | azimuth measure point longitude |
| 342 n | 4.1.2.1.2.13 | straight vertical longitude from pole |
| 342 o | 4.1.2.1.2.15 | landsat number |
| 342 o | 4.1.2.1.2.16 | path number |
| 342 p | 4.1.2.2.2.1 | utm zone number |
| 342 p | 4.1.2.2.3.1 | ups zone identifier |
| 342 p | 4.1.2.2.4.1 | spcs zone identifier |
| 342 p | 4.1.2.2.5.1 | arc system zone identifier |
| 342 q | 4.1.4.2 | ellipsoid name |
| 342 r | 4.1.4.3 | semi major axis |
| 342 s | 4.1.4.4 | denominator of flattening ratio |
| 342 t | 4.2.1.2 | altitude resolution |
| 342 t | 4.2.2.2 | depth resolution |
| 342 u | 4.2.1.4 | altitude encoding method |
| 342 u | 4.2.2.4 | depth encoding method |
| 342 v | 4.1.2.1.3 | other projection's definition |
| 342 v | 4.1.2.2.6 | other grid system's definition |
| 342 v | 4.1.2.3.1 | local planar description |
| 342 v | 4.1.3.1 | local description |
| 342 w | 4.1.2.3.2 | local planar georeference information |
| 342 w | 4.1.3.2 | local georeference information |
| 343 a | 4.1.2.4.1 | planar coordinate encoding method |
| 343 a | 4.1.2.4.3.3 | bearing units |
| 343 b | 4.1.2.4.4 | planar distance units |
| 343 c | 4.1.2.4.2.1 | abscissa resolution |
| 343 d | 4.1.2.4.2.2 | ordinate resolution |
| 343 e | 4.1.2.4.3.1 | distance resolution |
| 343 f | 4.1.2.4.3.2 | bearing resolution |
| 343 i | 4.1.2.4.3.5 | bearing reference meridian |
| 343 n | 4.1.2.4.3.4 | bearing reference direction |
| 352 a | 3.2 | direct spatial reference method |
| 352 b | 3.3.1.1 | sdts point and vector object type |
| 352 b | 3.3.2.2 | vpf point and vector object type |
| 352 b | 3.4.1 | raster object type |
| 352 c | 3.3.1.2 | point and vector object count |
| 352 d | 3.4.2 | row count |
| 352 e | 3.4.3 | column count |
| 352 f | 3.4.4 | vertical count |
| 352 g | 3.3.2.1 | vpf topology level |
| 352 i | 3.1 | indirect spatial reference |
| 355 a | 1.12.2 | security classification |
| 355 a | 7.10.2 | metadata security classification |
| 355 b | 1.12.3 | security handling description |
| 355 b | 7.10.3 | metadata security handling description |
| 355 c | 7.10.1 | metadata security classification system |
| 355 e | 1.12.1 | security classification system |
| 410 v, 440 v, 810 v, 830 v | 8.7.2 | issue identification |
| 440 a, 410 except v; 810 except v; 830 a | 8.7.1 | series name |
| 500 | 1.2.2 | purpose |
| 500 | 1.2.3 | supplemental information |
| 500 | 1.3.1 | currentness reference |
| 500 | 8.6 | geospatial data presentation form |
| 500 | 8.9 | other citation details |
| 505 a | ||
| 506 3, 506 a | 7.8 | metadata access constraints |
| 506 a | 1.7 | access constraints |
| 514 a | 2.1.1 | attribute-accuracy-report |
| 514 b | 2.1.2.1 | attribute accuracy value |
| 514 c | 2.1.2.2 | attribute accuracy explanation |
| 514 d | 2.2 | logical consistency report |
| 514 e | 2.3 | completeness report |
| 514 f | 2.4.1 | horizontal positional accuracy report |
| 514 g | 2.4.1.2.1 | horizontal positional accuracy value |
| 514 h | 2.4.1.2.2 | horizontal positional accuracy explanation |
| 514 i | 2.4.2.1 | vertical positional accuracy report |
| 514 j | 2.4.2.2.1 | vertical positional accuracy value |
| 514 k | 2.4.2.2.2 | vertical positional accuracy explanation |
| 514 m | 2.6 | cloud cover |
| 520 | 1.2.1 | abstract |
| 538 | 1.13 | native data set environment desc |
| 540 3, 540 a | 7.9 | metadata use constraints |
| 540 a | 1.8 | use constraints |
| 551 a | 5.1.1 | entity type label |
| 551 b | 5.1.1.2 | entity type definition |
| 551 b | 5.1.1.3 | entity type definition source |
| 551 c | 5.1.2.1 | attribute label |
| 551 d | 5.1.2.2 | attribute definition |
| 551 d | 5.1.2.3 | attribute definition source |
| 551 e | 5.1.2.4.1.1 | enumerated domain value |
| 551 f | 5.1.2.4.1.2 | enumerated domain value definition |
| 551 f | 5.1.2.4.1.3 | enumerated domain value definition source |
| 551 g | 5.1.2.4.2.1 | range domain minimum |
| 551 g | 5.1.2.4.2.2 | range domain maximum |
| 551 h | 5.1.2.4.3.1 | codeset name |
| 551 h | 5.1.2.4.3.2 | codeset source |
| 551 i | 5.1.2.4.4 | unrepresentable domain |
| 551 j | 5.1.2.5 | attribute units of measure |
| 551 j | 5.1.2.6 | attribute measurement resolution |
| 551 k | 5.1.2.7 | beginning date of attribute values |
| 551 k | 5.1.2.8 | ending date of attribute values |
| 551 l | 5.1.2.9.1 | attribute value accuracy |
| 551 m | 5.1.2.9.2 | attribute value accuracy explanation |
| 551 n | 5.1.2.10 | attribute measurement frequency |
| 551 o | 5.2.1 | entity and attribute overview |
| 551 p | 5.2.2 | entity and attribute detail citation |
| 583 a | 2.5.2.1 | process description |
| 583 b | 2.5.2.5 | source produced citation abbreviation |
| 583 c | 2.5.2.3 | process date |
| 583 c | 2.5.2.4 | process time |
| 583 c | 7.1 | metadata date |
| 583 f | 7.5 | metadata standard name |
| 583 f | 7.6 | metadata standard version |
| 583 l | 1.4.1 | progress |
| 583 z | 7.2 | metadata review date |
| 583 z | 7.3 | metadata future review date |
| 583 z | 7.7 | metadata time convention |
| 590 a | ||
| 590 b | ||
| 590 c | ||
| 590 d | ||
| 590 e | ||
| 590 f | ||
| 590 g | ||
| 590 h | ||
| 590 i | ||
| 590 j | ||
| 590 k | ||
| 590 l | ||
| 590 m | ||
| 590 n | ||
| 590 q | ||
| 590 r | ||
| 590 s | ||
| 590 t | ||
| 590 u | ||
| 590 v | ||
| 590 w | ||
| 590 x | ||
| 590 y | ||
| 590 z | ||
| 591 z | ||
| 650 2 | 1.6.1.1 | theme keyword thesaurus |
| 650 a | 1.6.1.1 | theme keyword |
| 650 a | 1.6.3.2 | stratum keyword |
| 650 a | 1.6.4.2 | temporal keyword |
| 650 v | ||
| 651 2 | 1.6.2.1 | place keyword thesaurus |
| 651 2 | 1.6.3.1 | stratum keyword thesaurus |
| 651 2 | 1.6.4.1 | temporal keyword thesaurus |
| 651 a | 1.6.2.2 | place keyword |
| 651 v | ||
| 655 2 | ||
| 690 a | ||
| 690 x | ||
| 690 y | ||
| 690 z | ||
| 691 a | ||
| 691 x | ||
| 691 y | ||
| 691 z | ||
| 700 a | ||
| 700 d | ||
| 700, 710, 711 | 1.11 | data set credit |
| 710 a | ||
| 710 b | ||
| 730, 740, 245 a & b | 8.4 | title |
| 740 | ||
| 772 w | ||
| 773 w | ||
| 775 w | ||
| 776 w | ||
| 786 h | 2.5.1.3 | type of source media |
| 786 j | ||
| 786 j | 2.5.1.4.1 | source currentness reference |
| 786 m | 2.5.1.2 | source scale denominator |
| 786 p | 2.5.1.5 | source citation abbreviation |
| 786 p | 2.5.2.2 | source used citation abbreviation |
| 786 v | 2.5.1.6 | source contribution |
| 787 w | ||
| 856 b | 6.4.2.2.1.1.2.7 | dialup telephone |
| 856 c | 6.4.2.2.1.1.2.6 | compression support |
| 856 f | 1.10.1 | browse graphic file name |
| 856 f | 6.4.2.2.1.1.1.1 | network resource name |
| 856 f | 6.4.2.2.1.1.2.8 | dialup file name |
| 856 i | 6.4.2.2.1.2 | access instructions |
| 856 j | 6.4.2.2.1.1.2.1 | lowest bps |
| 856 j | 6.4.2.2.1.1.2.2 | highest bps |
| 856 o | 6.4.2.2.1.3 | online computer and operating system |
| 856 r | 6.4.2.2.1.1.2.3 | number databits |
| 856 r | 6.4.2.2.1.1.2.4 | number stopbits |
| 856 r | 6.4.2.2.1.1.2.5 | parity |
| 856 u | 8.10 | online linkage |
| 856 z | 1.10.2 | browse graphic file description |
| 856 z | 1.10.3 | browse graphic file type |
| 856 z | 6.3 | distribution liability |