I would assume that "lot", as used in the question, is synonymous to "lumpsum".
The general rule is lumpsum bidding. Bids must be complete. The exception is LINE ITEM bidding where partial bids are allowed. The decision to choose the scheme is lodged to the BAC with the assistance of their TWG. If there are no express provisions in the Bidding Documents allowing partial bids, then the lumpsum bidding shall automatically apply.
a) I agree that items should not be lumped especially if by the nature of the goods, they are not ordinarily available to one supplier or contractor.
b) If an item has specifications that refers to a brand name or tailor-fitted for a particular bidder or bidders, then that will be a violation of Sec.18 of RA 9184.
The general rule is lumpsum bidding. Bids must be complete. The exception is LINE ITEM bidding where partial bids are allowed. The decision to choose the scheme is lodged to the BAC with the assistance of their TWG. If there are no express provisions in the Bidding Documents allowing partial bids, then the lumpsum bidding shall automatically apply.
a) I agree that items should not be lumped especially if by the nature of the goods, they are not ordinarily available to one supplier or contractor.
b) If an item has specifications that refers to a brand name or tailor-fitted for a particular bidder or bidders, then that will be a violation of Sec.18 of RA 9184.