Here is the following email that I received from the FAA:
Examinations:
ATCT Facility Examinations: FAA and FCT facilities shall continue taking the LAWRS examinations through CBI.
Contract Weather Observers (CWO) and Non-Fed Observers (NF-OBS) Examinations: Senior Weather Observers (SWOs) and NF-OBS Managers must request the examination from FAA Headquarters Contract Operations Group (AJT-21), Aviation Surface Weather Observation (ASWO) through email (9-AJT-HQ-ASWO). A written test will be sent to the SWO/NF-OBS Manager with instructions for administrating the examination.
Requesting Certificates:
On completion of all training requirements, the ATM, SWO or NF-OBS Manager must contact the ASWO Office via email (9-AJT-HQ-ASWO) to request a certificate.
A certificate request must be accompanied by a “Certificate Qualification Statement” (See attached) and the score results from the examination, the CBI printout or a copy of an email/written statement from the ASWO stating the score results of the written examination.
The Certificate Qualification Statement must be completed and signed by the ATM, SWO/NF-OBS Manager. The statement must include the signature and weather certificate number of the certified observer who presided over the candidate’s proficiency demonstration and for CWO and NF-OBS observers, that his/her eyesight meets the vision standards specified in NWSI 10-1304 Certification of Observers.
If you have any questions, please contact Ken Cunningham at 202-385-8773.