(After stating the foregoing facts.) The act of 1937 (Ga. L. 1937, p. 167) imposes an excise tax “upon the sale or use of motor fuel . . within this State.” There is no sale involved here, and consequently the tax assessment depends for support in law upon whether or not there has been a “use” of motor fuel in contemplation of that word as employed in the statute. Thus, at the very threshold of our consideration of this case, we encounter the necessity for a determination of the meaning of that word “use” as employed in the statute. That the motor fuel here involved was in interstate commerce at the time of its transportation from without this State to the place of storage within the State, and also while used as fuel in the defendant’s airplanes which were engaged exclusively in interstate commerce, and therefore not subject to the tax here claimed, is settled law. Article 1, section 8, paragraph 3, United States Constitution; Helson
v.
Kentucky,
But if it be conceded that such decisions of other courts, together with definitions of the word “use” cited by counsel for the Revenue Commissioner, indicate that the word “use” as here employed might embrace the operations of storage and withdrawal, this would only cause the meaning of the statute to become doubtful, and in the interpretation of a doubtful statute we are governed by certain rules, the controlling rule being that the legislative intent be ascertained and given effect.
Ex’rs of Henderson
v.
Alexander,
2
Ga.
81, 85;
Bacon
v.
Jones,
116
Ga.
136 (
Counsel for the Eevenue Commissioner contend that a portion of the caption, wherein it is stated in substance that the purpose of the act was to provide more stringent laws and regulations for the collection of the tax, shows a legislative intent to impose the tax upon storage and withdrawal by the word “use.” Courts may examine the caption as an aid to interpretation of a doubtful statute.
Eason
v.
Morrison,
181
Ga.
322 (
While it would perhaps be true that, by imposing the tax upon storage and withdrawal, the law would thereby prevent an evasion of the tax imposed on sales, there is no question here of an evasion or even a desire upon the part of the taxpayer to avoid paying the tax. On the contrary, as stated above, the defendant’s predecessor
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corporation handled its motor fuel exactly as is being done by the defendant and voluntarily paid the full taxes imposed on storage and withdrawal under the old law. The purpose or wisdom in repealing and refusing to re-enact a law imposing the tax upon storage and withdrawal is a matter for the exclusive determination of the legislature and is no legitimate concern of the judiciary.
Flint River Steamboat Co.
v.
Foster,
5
Ga.
194 (
Since this is a tax statute, if of doubtful meaning another rule of construction must be applied, which is that it must be construed liberally in favor of the taxpayer and against the State.
Mayor &c. of Savannah
v.
Hartridge, 8 Ga.
23;
Standard Oil Co.
v.
Swanson,
121
Ga.
412, 414 (
In addition to the foregoing reasons why we hold that the tax here claimed is not imposed by the law, there have been more than six years of administrative interpretation, obviously approved by the legislature, holding that such tax was not imposed. Shortly after this law was approved in 1931, the Attorney-General ruled that it did not impose the tax upon storage and withdrawal. The Comptroller-General, who was at that time the State official charged with the duty of collecting the tax, ruled that the law did not impose the tax upon storage and withdrawal. Successive State Kevenue Commissioners, who succeeded the Comptroller-General as the State official charged with the duty of collecting such taxes, followed the previous rulings that such a tax was not imposed. During this time the General Assembly convened a number of times and amended the law in other respects without ever amending it to impose the tax upon storage and withdrawal. And finally, by an amendment approved on February 28, 1945 (Ga. L. 1945, p. 158), the legislature expressly provided that no tax should be imposed upon storage and withdrawal. In the interpretation of doubtful statutes, much weight will be given such administrative
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and legislative interpretations.
Solomon
v.
Commissioners of Cartersville,
41
Ga.
157;
State of Georgia
v.
Camp,
189
Ga.
209 (supra);
Wilson
v.
Pollard,
190
Ga.
74 (
Judgment affirmed.
