LOINC websites may be unavailable during the following server maintenance window. This includes loinc.org and search.loinc.org as well as logins within the RELMA application.
Saturday, March 24, 2018 between 10:00-11:00 p.m. EDT
(Sunday, 25 March 2018 02:00-03:00 a.m. UTC)
Follow LOINC on Twitter for timely updates in regard to this maintenance.