The ten major routes and an "All Other" category are shown in Table 2 below in their order of importance by tolls paid in 1975 and in relation to the effects of the rules changes.

Table 3 below shows the effect by route of the on deck cargo rule only. Again fiscal 1975 is the base year:

TABLE 3.-EFFECT OF ON DECK CARGO RULE CHANGE ON MAJOR ROUTES

(2) What impact will the proposed rule changes have on the vessels of the flags of registry of nations which make up a large part of Canal traffic (e.g. UK, US, Greece, and Japan)?

The impact of the measurement rules on "vessels of the flags of registry" is as shown in Table 4. In Tables 5 and 6 importance by flag is ranked according to tolls paid in comparison to the effects of the measurement rule changes.

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TABLE 5.-EFFECT OF AGGREGATE MEASUREMENT RULES ON MAJOR FLAGS

1 Do not add because of rounding.

(3) What impact will the proposed rule changes have on the various types of vessels which transit the Canal?

The impact of the measurement rules changes by "the various types of vessels which transit the Canal" is shown in Table 7. The impact by vessel type falls most heavily on container vessels almost solely because of the application of the on deck cargo rule.

(4) What impact will the proposed rule changes have on the major commoditics and categories of commodities carried as cargo by vessels which transit the Canal?

The impact of the rules changes on “major commodities and categories of commodities" is shown in Table 8. Although tolls are not paid on a commodity basis, the effective rate of tolls by cargo type as established in the study Tolls Study, Office of the Comptroller, Panama Canal Company, fiscal year 1967 (data updated to reflect the 19.7 percent toll increase that became effecetive July 8, 1974) permits analysis of the impact of the measurement rule changes on cargo.

TABLE 8.-IMPACT ON MAJOR COMMODITIES OF PROPOSED AMENDMENTS TO MEASUREMENT RULES, FISCAL YEAR 1975

(1) List those studies and analyses which will serve as a basis for the Canal organization's response to this letter inquiry.

The attached annotated bibliography covers a wide range of studies concerning the Panama Canal, including those studies cited in the bibliography which appeared as an attachment to the February 2, 1976, letter from the Committee on Merchant Marine and Fisheries. The various studies included in the annotated bibliography present a comprehensive view of Panama Canal traffic, the forecasting of Canal traffic, estimates of sensitivity to toll increases, impacts of toll increases on every important world region, and the economic value of the Canal.

The studies cited in the annotated bibliography date back to at least 1967. Earlier studies are also available on some of the subjects indicated, but they are of limited reference value because of their dates of publication.

TABLE 9.-Annotated Bibliography

Andrews, Benjamin V. A Review of World Shipbuilding and Merchant Ship Fleet Trends. Menlo Park, California: Stanford Research Institute, 1968. This report presents an analysis of the trends in mix of vessels in the world merchant fleet. The first section presents an overview of the total world shipping traffic, the fleet capacity and fleet composition. The last four sections discuss the fleet of ships in the bulk ship group, tankers, freighters, and combination passenger and cargo ship group.

Brandes, Ely M. Analysis of Panama Canal Traffic and Revenue Potential. Menlo Park, California: Stanford Research Institute, 1967. This study analyzes the sensitivity of Panama Canal traffic to toll increases of up to 150 percent. It reviews the impact of tolls on traffic moving through the Canal, under both the current toll system and a possible alternative system and estimates the revenue potential of the Canal.