Section 4(10) in The Delhi Plastic Bag (Manufacture, Sale and Usage) and Non-Biodegradable Garbage (Control) Rules, 2002
(10)If the person/manufacturer/applicant concerned challenges the results of the Laboratory, then the other part of the sample which is preserved and retained with the authorized officer shall be forwarded to the Scientist in charge of the Laboratory of the Central Pollution Control Board within a period of seven days from the receipt in such request from the person/manufacturer/applicant and the Scientist in-charge of the Central Pollution Control Board Laboratory shall forward the result of the test within thirty days from the date of the receipt of the sample. The report of the Central Pollution Control Board Laboratory shall supersede the report given by the Scientist in-charge of the Laboratory and the report of the Central Pollution Control Board Laboratory shall be final and conclusive.
