— Petitioner, a municipal corporation of the sixth class, seeks a writ of mandate requiring respondent city treasurer to sign, and respondent city clerk to countersign, certain revenue bonds which the city proposes to issue pursuant to the Revenue Bond Law of 1941. (Gov. Code, § 54300 et seq.) Mandamus is, of course, an appropriate remedy to compel respondents to sign the bonds, if the proposed issue meets the requirements of the law, since the acts demanded are ministerial duties.
(Cf. City of Fairfield
v.
Hutcheon,
The sole question presented is whether the proposed bonds, and the statute under which they were authorized by the voters and the city council, are contrary to section 18 of article XI of the California Constitution, which provides, insofar as pertinent here: “No county, city, town, township, board of education, or school district, shall incur any indebtedness or liability in any manner or for any purpose exceeding in any year the income and revenue provided for such year, without the assent of two thirds of the qualified electors thereof, voting at an election to be held for that pur *732 pose, nor unless before or at the time of incurring such indebtedness provision shall be made for the collection of an annual tax sufficient to pay the interest on such indebtedness as it falls due, and also provision to constitute a sinking fund for the payment of the principal thereof. ...”
The city has owned a sanitary sewer system since 1905. The system and its additions and improvements were financed largely by the issuance of general obligation bonds, of which a total amounting to $795,200 remains outstanding and unpaid. Charges for use of the sewer system were first imposed in 1946, and since that time all expenses of operation and maintenance have been paid from sewer revenues. The revenues have been used, further, to pay part of the interest and principal on general obligation sewer bonds issued in 1949, but the city does not presently intend to continue to apply sewer revenues toward the retirement of these bonds.
A treatment plant, financed by a portion of the general obligation bonds referred to above, is now being constructed, and the city proposes to construct interceptor sewers to transport sewage to the treatment plant. Pursuant to the Revenue Bond Law of 1941 the city council, in March 1954, called a special election to submit to the voters the issuance of sewer revenue bonds in the amount of $450,000 to finance the construction of the interceptor sewers. It was specified that the bonds were to be payable exclusively from the revenues of the entire sewer system of the city, together with all additions and improvements thereafter made, and that the bonds were not to be secured by the taxing power of the city. The Revenue Bond Law of 1941 requires authorization of such bonds by a majority vote (Gov. Code, § 54386), and, since the election was called pursuant to that statute, it may be inferred that the bond measure was submitted to the voters upon the theory that only a majority vote was required. The bonds were approved at the ensuing election.
Subsequently the city council adopted a resolution authorizing the proposed bonds in accordance with the measure submitted to the voters. The resolution recites that issuance of the bonds was approved by more than a majority of the voters; that they are to be issued pursuant to the Revenue Bond Law of 1941 and are to be secured by a pledge and lien upon, and payable solely from, the gross revenues of the entire sewer system, including extensions later constructed; that the bonds are not a debt of the city; and that the bondholders cannot compel the exercise of the taxing power of the city or the forfeiture of any of its property.
*733 The resolution further provides that the city is to covenant, among other things, that it will operate the system in an efficient manner and will prescribe sufficient charges for the services of the system to pay interest and principal on the bonds and the expenses of operation. Revenues are to be used, first, for payment of principal and interest on the bonds and then for current expenses of the system. Surplus funds can be invested or used to redeem the proposed bonds and, under some circumstances, may be used for other sewer purposes, including payment of principal and interest of general obligation bonds of the city issued for sewer purposes. No claim is made that the proposed bonds will in any way vary from the requirements of the Revenue Bond Law of 1941. Although it is not specifically alleged that the issuance of the proposed bonds, if considered as a debt of the city, will create an indebtedness in any year in excess of the income of the city for such year within the meaning of section 18 of article XI, this appears to be conceded and, further, may be inferred from the recital in the resolution authorizing the bonds that funds must be provided for the purpose of constructing the interceptor sewers.
It is settled in California and recognized in almost all of the other states that, as a general rule, a constitutional provision such as section 18 of article XI is not violated by revenue bonds or other obligations which are payable solely from a special fund, provided the governmental body is not liable to maintain the special fund out of its general funds, or by tax levies, should the special fund prove insufficient.
(Department of Water & Power
v.
Vroman,
The cases in California are not entirely clear as to the extent of the operation of the special fund doctrine, and there is a conflict of authority on the subject in other states. Some of the courts in other jurisdictions have held that *734 revenue bonds payable solely from a special fund will not be free from the constitutional limitation unless the fund is restricted to the revenues from the particular improvement which is to be constructed out of the proceeds of the bonds in question, but under the prevailing view the doctrine may be applicable where the revenues of the entire existing system, as well as those of the proposed improvement, are pledged. (See Joint Report of Committees of the American Society of Civil Engineers, the Section of Municipal Law of the American Bar Association and others (1951), 12 Ohio State L.J. 147, 182 et seq.; 38 Am.Jur. 155-156.)
The first case in California discussing this problem is
Garrett
v.
Swanton,
Two subsequent decisions of this court, while distinguishing the Garrett case on its facts, have departed from its reasoning insofar as it may be applicable here.
(Department of Water & Power
v.
Vroman,
The language in the Kelly case (
In the Vroman case (
*737 It follows that, in the present case, the former practice of the city to use the revenues from the sewer system to make payments on the general obligation bonds has no bearing upon the question whether the incurring of a subsequent obligation to be paid solely from those revenues, in priority to the general bonds, will violate section 18 of article XI. It may be noted, in this connection, that in the absence of some specific statutory or contractual provision the city could properly reduce or discontinue the imposition of charges for use of its sewer system and arrange for the assessment of taxes to make the payments on its general bonds. Since the city may terminate use of sewer revenues as a means of servicing the general bonds, it is, of course, immaterial that the city, at the same time, pledges the revenues for the payments to be made on an issue of revenue bonds.
As we have seen, an obligation which is payable out of a special fund is not an “indebtedness or liability” of a governmental body within the meaning of section 18 of article XI of the Constitution if the governmental body is not required to pay the obligation from its general funds, or by exercise of its powers of taxation, should the special fund prove insufficient. Respondents concede, as they must, that the special fund doctrine would be applicable and controlling here if the revenues pledged to secure the proposed bonds were secured by the revenues to be produced from the interceptor lines alone. Insofar as concerns the constitutional limitation, we can see no sound reason to distinguish between that situation and the one presented here where the pledge consists of the revenues of the entire system and where those revenues had formerly been used to make payments on the city’s general obligation bonds.
Garrett
v.
Swanton,
It is ordered that a peremptory writ of mandate issue as prayed.
Shenk, J., Carter, J., Traynor, J., Sehauer, J., Spence, J., and McComb, J. pro tern., * concurred.
Notes
Assigned by Chairman of Judicial Council.
