This report describes the ISO TC211 codelist catalogs, the codelists they contain, and the values and definitions of the codes.
Please contact Ted Habermann if you have questions or suggestions.
| Entry | Definition | 
|---|---|
| continual | resource is repeatedly and frequently updated | 
| daily | resource is updated each day | 
| weekly | resource is updated on a weekly basis | 
| fortnightly | resource is updated every two weeks | 
| monthly | resource is updated each month | 
| quarterly | resource is updated every three months | 
| biannually | resource is updated twice each year | 
| annually | resource is updated every year | 
| asNeeded | resource is updated as deemed necessary | 
| irregular | resource is updated in intervals that are uneven in duration | 
| notPlanned | there are no plans to update the data | 
| unknown | frequency of maintenance for the data is not known | 
| periodic | resource is updated at regular intervals | 
| semimonthly | resource updated twice a monthly | 
| biennially | resource is updated every 2 years |