Dear PCC Colleagues,

Can anyone give me advice on how to manage dates on 046 field on this complicated case?

I need to create an authority record for CH2M Firm.


Here is the salient info:

CH2M was founded in 1946, became CH2M HILL after a merger in 1971.  Over the year the company has acquired a long string of other engineering firms:

1977: acquired Black, Crow & Eidsness,  August 2002, acquired Gee & Jensen,  DeMil International, and EHS Consultants Ltd., October 2005, acquired BBS Corporation,  in Sept  2007, acquired most of the components of VECO; in December 2007, acquired Trigon EPC; in March 2008, acquired Goldston Engineering, in October 2014 acquired TERA Environmental Consultants.

However, in April 2015, the company officially removed the word "Hill" from its name.  This would constitute a name change, and we have a publication under the new name: CH2M. 


in December 2017, Jacobs Engineering Group acquired CH2M. 

Please advise.


Thank you,



Alla Kroychik

E-resources Access and Discovery Professional

Auraria Library

1100 Lawrence St, Denver, CO 80204
Phone 303.315.7739 | Fax 303.315.7774

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