The plaintiff brought this action under § 49-42 of the General Statutes, seeking reimbursement for labor and materials claimed to have been furnished to Catello DiLauro, a subcontractor of L. G. DeFelice and Son, Inc., which had contracted with the state to construct a section of highway. General Statutes § 49-41 requires such a contractor to furnish to the state “a bond in the amount of the contract . . . for the protection of persons *327 supplying labor or materials in the prosecution of the work provided for in . . . [the] contract.” L. G. DeFeliee and Son, Inc., hereafter referred to as DeFeliee, furnished such a bond. The five surety companies which signed the bond together with DeFeliee, are defendants in the action. The plaintiff sought reimbursement from all defendants to the extent of $23,475.85. The court adjudged that the plaintiff recover of the defendants $1802.88, and the plaintiff has appealed.
The issues before us require an interpretation of § 49-42, the pertinent portions of which are quoted in the footnote. 1 Our concern is with the portion of the statute which states that “[e]very person who has furnished labor or material in the prosecution of the work provided for” in the con *328 tract in respect of which, the payment bond under § 49-41 is furnished may recover in an action on the bond. The court has found that all of the procedural requirements for the maintenance of an action under § 49-42 have been met. We have not,, heretofore, been called on to construe the statute.
The corrections which are sought in the court’s, finding would not benefit the plaintiff in the view which we take of the case. The essential facts may be briefly summarized. On or about September 2, 1959, DeFelice contracted with the state to relocate and construct a section of highway. In connection with that contract and pursuant to § 49-41, DeFelice as principal entered into a bond with the other-defendants as sureties and filed it with the state. In performing its contract, DeFelice engaged DiLauro as a subcontractor to haul fill for the road, construction and has fully paid him for the work. DiLauro started work with six used trucks, the age and condition of which is not disclosed, and he purchased five more secondhand trucks during the course of the job. He used his trucks exclusively for hauling fill under his subcontract, save for about a dozen days when one truck may have been diverted to other work. DiLauro’s hauling job covered the period from December, 1959, to August, 1960, and from March to August, 1960, he operated his trucks on a double shift so that some trucks were used twenty hours a day in order to meet a deadline. Throughout the period of the subcontract the trucks were subject to numerous breakdowns. The trucks were repaired either by the plaintiff or by DiLauro’s employees with parts furnished by the plaintiff. Pink invoices were rendered DiLauro when both materials and labor for the repairs were furnished by the plaintiff. Yellow invoices were rendered *329 DiLauro for parts purchased from the plaintiff but used in repairs made by DiLauro’s employees. All invoices up to June, 1960, were paid by DiLauro. Invoices for June, July and August, 1960, amounting to $23,475.85, have not been paid, and DiLauro has been adjudicated a bankrupt.
The pink invoices embrace a multitude and variety of items. They include charges for such things as a new engine, a new transmission, radiator and wiring repairs, relining brakes, replacing a cylinder head, exchanging one transmission for another, new differentials, greasing, tuning motors, removing parts from one truck and installing them in another, installing an air bath assembly, replacing springs, remedying transmission noise, grinding valves, and overhauling generators and transmissions.
The yellow invoices include charges for such things as batteries, springs, axle shafts, a wheel, a mirror and a multitude of small items such as nuts, bolts, switches, gauges, pumps and spark plugs.
The court decided, in substance, that the charges for labor and materials appearing on the pink invoices represented major repairs in the nature of general overhauling, reconditioning, and installation of new motors and parts, and that the work amounted to permanent improvement in the equipment fitting it for use in other work rather than repairs due to ordinary wear and tear. The court concluded, for the reasons stated, that these charges failed to come within the purview of § 49-42, and it denied the plaintiff a recovery based on them.
The court decided, however, that the charges for parts listed on the yellow invoices were a proper basis for a recovery, because the parts were used in making incidental repairs necessary to keep the equipment in operating condition.
*330 The two groups of invoices do not, however, lend themselves to this differentiation. The numerous labor charges made by the plaintiff on the pink invoices for relining brakes, greasing, tuning engines, grinding valves and overhauling generators and transmissions, to name but a few, could readily have been due to ordinary wear and tear and would not necessarily have amounted to a permanent improvement. On the other hand, new axles, springs or batteries did not necessarily become any the less new parts or improvements to equipment because they were installed by DiLauro’s employees rather than by the plaintiff’s.
The answer to the problem as to which, among the many, items are properly recoverable under § 49-42 calls for an interpretation of the statute which allows materialmen a just recovery for labor and material furnished in the prosecution of the work encompassed by the contract in connection with which the bond was given, but at the same time, denies to the contractor capital improvements to his equipment at the expense of the principal and surety. This objective was recognized by the court in its reference to a distinction between “permanent improvement of the equipment” and “[i]ncidental repairs reasonably necessary to keep the equipment in operating condition.” The crucial question, however, is how the one is to be differentiated from the other in the determination of what is labor or material furnished in the prosecution of the work.
Courts in other jurisdictions have not attempted an all-inclusive definition of material furnished in the prosecution of the work, “for the facts and circumstances of each case are the sole determinants of the definition.”
United States
v.
Fire Assn. of
Philadelphia,
An apparent kinship between our own and the federal statutes of similar purpose, however, leads us to decisions of the federal courts for precedent. In
National Fireproofing Co.
v.
Huntington,
We have previously said that statutes such as § 49-41 are to be liberally construed;
Pelton & King, Inc.
v.
Bethlehem,
*334
To meet the objective of the statute, material actually forming a part of the public work, labor performed at the site, and, under the express wording of our statute, the renting of equipment used in the prosecution of the work are clearly covered.
3
It is in the realm of repair items, such as in the present case, that major difficulties appear in the decided cases. The issue revolves about the concept, already alluded to, of a capital improvement as opposed to repairs necessitated by the wear and tear resulting from a particular job. Thus, materials which compensate only for wear and tear and are wholly consumed, or, at the time of their delivery, were reasonably expected, by the supplier and contractor, to be consumed, on the job have been held to be covered.
Continental Casualty Co.
v.
Clarence L. Boyd Co.,
We conclude that it is not possible to state a comprehensive definition of what labor and materials used in making repairs are allowable under the statute. Little difficulty is presented in the class of minor items which are uniformly allowed.
4
It is in the area of major items where the difficulty is encountered. Although the generally accepted legal and tax accounting principles which are applicable to expenses of operation and capital improvements are persuasive, they can have no conclusive force.
*336
We are in accord with the reported decisions which hold that the most significant single factor in distinguishing materials contemplated by the statute from capital equipment is the element of substantial consumption on the job. Recognition must be given to the fact that the present statute, contrary to the 1917 statute and the Heard Act, as later amended in 1905 (33 Stat. 811), does not require that the materials be used in the work but, as in the Miller Act, specifies that they be furnished in the prosecution of the work. We accept the proposition enunciated in
United States
v.
Fire Assn. of Philadelphia,
supra, 544, that if, at the time of delivery, the facts unequivocally show that both the supplier and the purchasing contractor reasonably expected that any major item involved would be substantially consumed in the work under the contract, the cost thereof is properly recoverable even though the item was not actually consumed during the progress of the work. Such a construction properly places on the repairer who seeks to recover under the bond the responsibility of showing that, at the time he performed the work or furnished the material, he and his customer reasonably expected that the subject of the transaction would be substantially consumed within the period of the contract. A fair and liberal interpretation of the statute requires that, on such a showing, the repairer should be entitled to recover in the absence of proof by the principal or surety that the repairer was aware of the fact that the contractor, in having the work done, was building up capital equipment at the expense of the surety instead of obtaining repairs necessitated by the job, or that the repairs were due to the prior condition of the equipment rather than to the rigors of the job involved. See
United States
v.
D. C. Loveys Co.,
*337
174 F. Sup. 44, 49 (D. Mass.), aff’d,
This conclusion requires a new trial in order that the items appearing on the various invoices in issue may be reevaluated in the light of this interpretation of § 49-42.
There is error, the judgment is set aside and a new trial is ordered.
In this opinion the other judges concurred.
Notes
“See. 49-42 [later amended by Public Acts 1961, No. 228]. suit on bond; when and how brought, (a) Every person who has furnished labor or material in the prosecution of the work provided for in such contract in respect of which a payment bond is furnished under the provisions of section 49-41 and who has not been paid in full therefor before the expiration of a period of sixty days after the day on which the last of the labor was done or performed by him or material was furnished or supplied by him for which such claim is made, shall have the right to sue on such payment bond for the amount, or the balance thereof, unpaid at the time of institution of such suit and to prosecute such action to final execution and judgment for the sum or sums justly due him; provided any person having direct contractual relationship with a subcontractor but no contractual relationship express or implied with the contractor furnishing such payment bond shall have a right of action upon such payment bond upon giving written notice to such contractor within sixty days from the date on which such person performed the last of the labor or furnished or supplied the last of the material for which such claim is made, stating with substantial accuracy the amount claimed and the name of the party to whom the material was furnished or supplied or for whom the labor was done or performed. . . . (c) The word 'material’ as used in sections 49-41 to 49-43, inclusive, shall be construed to include the rental of equipment used in the prosecution of work provided for in such contract.”
See also the 1962 edition of “Credit Manual of Commoreial Laws,” published by the National Association of Credit Management, pp. 635-735.
While decisions of the federal courts have held rentals of equipment to be within the coverage of the bond;
Basich Bros. Construction Co.
v.
United States,
Some of the factors which have been held to be helpful in deciding whether or not a particular repair is a minor one are: (1) cost of the repair relative to the value of the item repaired; (2) whether the repair is of a recurring nature; (3) whether the value of the equipment has been significantly increased by the repairs.
