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(b) OES as indicated by the Indenting Authority should certify that the tendered items are
manufactured under their direct technical supervision and necessary measures have been
taken by them for ensuring quality assurance.
6. This is to certify that the items covered in the above indent have been originally manufactured
/ supplied by the vendor mentioned above.
Signature
Name
Designation
Date
Please strike out which are not applicable.
This certificate should be issued by authority not below the rank of
Station Chief/Sr.C.E. HOD./CE
Please note the following in general with respect to OEM & OES :
OEM - In case of complete equipment such as, Pump, Motor, Panel etc., manufacturer of the
complete equipment as a whole or component parts manufactured by the OEM only, may be
considered as Original Equipment Manufacturer (OEM).
OES – In case of supply of a package consisting of number of equipments/components, the
supplier of the total package may be considered as the original equipment supplier (OES) and the
same is a bought out item.
PAC - The article/component is manufactured by the vendor only and there is no other known
vendor who manufacture the same article.
W& P Manual – 2012 Page 200