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The statement apparently quotes FDA as asserting that " because it does not use a high voltage charge which could impel dead insects away from the trap , it is acceptable for use above and around food areas under the codes and guidelines for restaurants . With respect to the data supplied by the manufacturer , it is deficient in one detail . The design of critical , distributed applications is a complex problem for which it is advisable to use both formal description techniques , in order to specify unambiguously the behaviour of the applications under study , and automatic or semi-automatic verification tools , in order to validate the proper functioning of these applications . SUMMARY : A statement quotes FDA as asserting that " because it does not use a high voltage charge which could impel dead insects away from the trap , it is acceptable for use above and around food areas under the codes and guidelines for restaurants . When the storage bag is empty , it is easily collapsed and folded for storage . To the extent that Coffey v. United States suggests otherwise , it is hereby disapproved . To return to our example , we could have chosen an orientation of axes other than north / south and east / west ; however , that orientation is most convenient because it " makes the most sense " ( i.e ., it is easily interpretable ) . Note : Instead of using the sterile disposable gloves specified in the IOM , it is acceptable to simply turn a garbage bag inside out over the hand so that the inside of the bag becomes the sterile outside of the temporary glove in order to pick up subsamples .