The Program for Cooperative Cataloging (PCC), OCLC, and SkyRiver are testing a possible transition to using limited ISBD punctuation in MARC 21 bibliographic records.  The test period will run through July 1, 2018.
Three record sets containing limited punctuation have been compiled by the Library of Congress, the National Library of Medicine, and OCLC. The record sets are available from:
Administrators of library systems and applications that make use of MARC 21 encoded data, including MARC 21 transformation and linked data services are encouraged to test the record sets in their systems and report their observations in this survey.
 The data collected by the survey will only be used by the PCC Policy Committee to evaluate the pros and cons of this approach and the impact on system services. 
The survey consists of 14 questions and should take less than 20 minutes to complete.
Thank you.