OPINION
At issue in this appeal is whether, pursuant to principles designed to implement a statutory scheme of competitive bidding for public construction projects, a school district was obliged to reject a low bid submission which included a bid bond that did not meet an advertised surety quality rating requirement.
In March of 1999, in accordance with competitive bidding requirements reposited in the Public School Code of 1949, 1 24 P.S. § 7-751, Appellant Ridley School District (the “District”) publicly circulated an invitation for bids for thirty-one prime contracts for the construction of a new high school, including one encaptioned “Aluminum Entrances and Storefronts Construction” (the “contract”). Among other things, the invitation required submission of sealed bids by a date and time certain and set forth requirements for the execution of bid bonds. Associated instructions to bidders further specified that the bid bond surety was to possess a “Best rating” (an evaluation of stability and profitability as adjudged by A.M. Best Company) of “A-” or better. 2 In addition, the instructions contained *503 a reservation of rights on the part of the District pertaining to waiver of bid irregularities. 3
IBE Construction, Inc. (“IBE”), 4 submitted a timely bid for the contract, together with a bid bond issued by Commonwealth Insurance Company, which maintained a Best rating of “B,” a lower rating than called for in the District’s instructions. Subsequently, the District contacted IBE, notifying it of this irregularity and requesting a compliant bid bond. The next day, IBE presented a bond from American Manufacturers Mutual Insurance Company, assigned a Best rating of “A.” The District thereafter awarded the contract to IBE at a cost of $896,000. The next lowest bid had been submitted by Almond Glass Works, Inc. (“Almond”); although Almond’s offer was to perform the work for nearly $100,000 more than IBE’s bid, its submission included a bid bond that was fully compliant with the bidding documents.
Subsequently, Nick Gaeta (“Gaeta”), a taxpayer in the school district, filed a complaint in equity, seeking a permanent injunction against the award of the contract to IBE and an order directing the District to instead award the contract to Almond. Gaeta also filed a petition for a temporary restraining order and preliminary injunction directed toward the above ends, to which he attached an affidavit from Paul Almond, president of Almond, which described the Best “A-” rating as “secure” and the “B” category as “vulnerable.” *504 Given the rating discrepancy arising from" IBE’s original bid bond submission, Mr. Almond averred that his company was the lowest responsive and responsible bidder. Further, Gaeta attached a separate affidavit asserting that, as a taxpayer in the .school district, he opposes- contractual ■ expenditures of public funds absent adherence to governing competitive bidding requirements.
The common pleas court conducted a hearing concerning the availability of preliminary injunctive relief, at which the sole evidence presented was an affidavit from Sidney M. Zilber, the president of Commonwealth Surety, the company that provides surety bonding services to IBE through both Commonwealth Insurance Company and American Manufacturers Mutual Insurance Company. In the affidavit, Mr. Zilber attested that neither company charges IBE for the issuance of bid bonds, and that the premium charged once a contract is awarded is the same for both companies (1.75 percent of the contract price); the Zilber affidavit was entered into evidence without objection. In denying injunctive relief, the common pleas court cited
Rainey v. Borough of Derry,
*505
On Gaeta’s appeal, however, the Commonwealth Court reversed.
See Gaeta v. Ridley Sch. Dist.,
Presently, both the District and Gaeta frame their arguments around the legal standards enunciated by the Commonwealth Court, including the general requirement of bid responsiveness, and the availability of waiver or cure with respect to non-material irregularities lacking anti-competitive aspect. The District highlights the embodiment of these principles in Harris and Rainey. Acknowledging that Harris adds that a per se determination of non-responsiveness attaches in circumstances in which a defect pertains to bid requirements grounded in legislative pronouncements, the District emphasizes that there is no legislative predicate for a surety rating requirement for bid bonds. According to the District, its express reservation of the right to waive irregularities in its bid instructions constituted adequate notice to bidders concerning minor post-submission changes or corrections, and therefore, ameliorated any unfairness to bidders that might otherwise have arisen by virtue of IBE’s post-submission cure. Regarding the Commonwealth Court’s conclusions concerning materiality and competitive advantage, the District argues that they are unsupported by the record. Gaeta, on the other hand, argues that Harris stands for the proposition that materiality is established on the face of bid documents to the extent that they employ mandatory language. Since the bid instructions here contained the imperative “shall” in indicating that a bid bond was to be provided by a surety maintaining a Best rating of “A-” or better, see supra note 2, Gaeta asserts that the quality of surety provision must be deemed material and mandatory. He further maintains that the materiality of the quality of surety requirement is evident from the diminution in protection provided to the District, and from the District’s directive to IBE to correct the irregularity. According to Gaeta, the bid bond irregularity *507 also afforded a cost advantage to IBE, as well as an option to withdraw its bid without relinquishment of a penal sum.
Preliminarily, we note that the standard of review for determinations concerning the availability of preliminary injunctive relief is deferential to the court of original jurisdiction.
6
Further, application of the standards governing judicial review of discretionary acts of governmental bodies also entails the affordance of deference to governmental decision makers.
7
Although the applicable review standards thus favor the District’s position, in implementing the legislative purposes underlying competitive bidding enactments, Pennsylvania appellate courts have recognized and enforced restrictions upon executive decision making.
See, e.g., American Totalisator,
*508
Although the rule of compliance is thus emphasized,
9
courts have not eliminated the discretionary aspect of executive decision making when the government is confronted with a non-compliant bid that it might choose to consider to achieve effective utilization of the public fisc.
See generally Yoder v. School Dist. of Luzerne Twp.,
first, whether the effect of a waiver would be to deprive the municipality of its assurance that the contract will be entered into, performed and guaranteed according to its specified requirements, and second, whether it is of such a nature that its waiver would adversely affect competitive *509 bidding by placing a bidder in a position of advantage over other bidders or .by otherwise undermining the necessary standard of competition.
10 McQullin, Municipal Corporations § 29.65 (3d ed.l999)(collecting cases). As this formulation represents an apt synthesis of prevailing Pennsylvania precedent on the assessment of the availability of waiver and cure in the public works setting, we will apply it here. Further, we reiterate this Court’s admonition that, in circumstances where legislative pronouncements particularize the manner in which government contracts are to be made, such requirements are not subject to waiver.
See Harris,
In the present case, since no statute or ordinance attaches a quality rating requirement to bid bond security,
10
we must consider whether the District’s quality condition was material in the sense that the effect of a waiver would deprive the District of an adequate assurance, and whether a waiver would have advantaged IBE vis-á-vis competitors. With regard to the assurance factor, as Gaeta contends, review of the language of the bid documents can provide insight into the degree of importance attached to the condition by the District. Upon review of the language employed, however, we find Gaeta’s emphasis upon the District’s use of the word “shall” to be overstated, as imperatives run throughout the bid instructions and pertain to virtually all requirements of substance and form, and as the District expressly reserved the entitlement to waive irregularities.
See supra
note 3. Further, we do not read
Harris
to establish that imperatives in bid documents are necessarily dispositive of materiality. As previously noted,
Harris’s
emphasis was directed to the consequence of the implementation of statutory requirements through instructional mandates,
see Harris,
In further assessing materiality, we move to consideration of the specific character of IBE’s non-compliance. In this regard, we credit the common pleas court’s observation that a bid bond, unlike a performance bond, serves the limited purpose of ensuring that the bidder will sign the contract if awarded.
See generally A.J. Colella, Inc. v. County of Allegheny,
Concerning the competitive advantage factor, the trial court’s finding that any impact of the “B’’-rated security was negligible is supported by the only available record evidence, the affidavit presented by IBE. This attestation suggests that the surety company’s rating had little or no bearing upon the cost of IBE’s bid, and that IBE could have obtained the required bond from another surety with which it deals at like cost. In addition to being unsupported in the record, Gaeta’s claim of a significant cost advantage seems unlikely in the circumstances and particularly in light of the substantial disparity between IBE’s and Almond’s bids.' Finally, Gaeta’s assertion that the bid bond irregularity afforded IBE an opportunity to retract its bid and undermined the security presented is meritless, since both IBE and its original surety made clear and unequivocal commitments to the District, and Pennsylvania’s requirements concerning bid withdrawal are exacting for much the same reasons as are those concerning bid acceptance.
See generally Modany v. State Pub. Sch. Bldg. Auth.,
Variances from instructions and specifications in public works bidding are to be discouraged and, at a minimum, implicate the government’s discretionary authority to reject a *512 non-compliant bid. We are satisfied here, nonetheless, that the record thus far presented does not establish such materiality or competitive advantage as would compel bid rejection and, correspondingly, the affordance of preliminary injunctive relief as requested by Gaeta.
Accordingly, the order of the Commonwealth Court is reversed, and the matter is remanded to the trial court.
Notes
. Act of March 10, 1949, P.L. 30 (as amended 24 P.S. §§ 1-101-27-2702).
. The full text of the bid bond instructions is as follows:
A bid bond, certified check, or cashier’s check, in the amount of 10% of the proposed Contract Amount must accompany each bid. Bid bonds shall be on AIA Form A310, Document 00410, or on the form provided by the surety company, which has the same exact wording as AIA A310, and made out to the Owner in the name of the firm, persons, or company signing the Bid Form. Surety Company shall be licensed to do business in the Commonwealth of Pennsylvania with a minimum Best Rating of A- or better. The successful bidder’s security will be retained until he has signed the Contract and furnished the required Performance Bond and Payment Bond (AIA Form A312). The Owner reserves the right to retain the security of the next two lowest bidders until the lowest bidder enters into contract. If any *503 bidder refuses to enter into a Contract, the Owner will retain his bid bond.
Instructions to Bidders, § 1.03(A).
. This provision, found among the "award of contract” terms of the instructions to bidders, proceeds as follows:
Award of Contract will be made if the Owner considers award to be in his best interests. Award will be made to the lowest responsive and responsible bidder on the base bid or any combination of base bid and alternates or any combination of base bids and alternatives for several contracts. The Owner may also consider olher factors which he feels have bearing on the Project. The Owner may waive irregularities.
Instructions to Bidders, § 1.09(A).
. In its answer to the complaint, IBE indicated that it was erroneously identified as IBE Contracting, Inc., in the caption of the complaint.
. The requirement has frequently been stated that public contracts subject to a statutory low-bid requirement are to be awarded to the lowest responsive and responsible bidder.
See generally Pearlman v. Pittsburgh,
. An order granting or denying preliminary injunctive relief is subject to limited appellate review, with the Court ascertaining only whether the trial court's action had any “apparently reasonable basis.”
City of Phila. v. District Council 33, AFSCME,
.
See generally American Totalisator Co. v. Seligman,
.
See American Totalisator Co. v. Seligman,
.
See, e.g., Gaeta,
. Various legislative enactments do require the posting of bonds to secure payment and performance in order to ensure that contracts, once enlered, are fulfilled. See, e.g., 8 P.S. § 193.
. The Court further discussed the use of imperatives in
Whitemarsh Twp. Auth. v. Finelli Bros. Inc.,
Although we therefore reject Gaeta's argument concerning the effect of imperatives, in part, based upon the District's reservation of waiver rights, we recognize that such a provision does not, in and of itself, establish the non-materiality of any particular instruction or specification.
Accord Lovering-Johnson, Inc. v. City of Prior Lake,
.
Cf. Interstate Rock Products, Inc. v. United States,
