For one, it was Harris that protested the quite restrictive specification
of the BAC.
No Unlawful Bundling and Unduly Restrictive Specification
Where the Agency Can Justify Bundling as the Best Method of Meeting Its Needs and Restrictive Specification
This is the most restrictive specification and will be referred to subsequently as model I.
In practice this involves estimating all three of the models outlined above and conducting Johansen's likelihood-ratio tests for the rank order of the long-run matrix sequentially from the most restrictive to the least restrictive specification. The first time the null hypothesis is not rejected then indicates both the rank order of the long-run matrix and the appropriate specification for the deterministic components.
More importantly this approach implicitly rejects, through the use of an overly restrictive specification, endogenous cycles in favor of stochastic cycles.
While the early work of Nelson and Plosser  sparked interest in the subject of unit roots, it also severely limited the scope of inquiry through a restrictive specification of endogenous business cycles.
The economic impact of establishing restrictive specification
limits, however, should be considered.
To avoid this the owner may dictate a less restrictive specification
, which may let the contractor select inferior equipment.
FHWA undertook this study to assess these weld geometries and potentially provide performance data that might alleviate restrictive specifications
The implication is that when not constrained by restrictive specifications
, the military can maximize the use of commercial off-the-shelf (COTS) and government off-the-shelf (GOTS) items as well as the creativity of industry.
The agency undertook the corrective action after determining that more restrictive specifications
may have been communicated to Para than were conveyed to other competitors.
There are other great "teaching cases" on unduly restrictive specifications
, lack of advanced planning, the Federal Supply Schedule (FSS), and what constitutes notice of an award.