Migratory Bird Hunting and Conservation Stamp Promotion Act of 1998

Migratory Bird Hunting and Conservation Stamp Promotion Act of 1998 - Amends the Act commonly referred to as the Migratory Bird Hunting and Conservation Stamp Act to: (1) make such title the legislated short title; and (2) allow the Secretary of the Interior, subject to approval of an annual marketing plan by the Migratory Bird Conservation Commission, to use from receipts from the sale of migratory bird hunting and conservation stamps an amount not to exceed $1 million for each FY from 1999 through 2003 for the promotion of additional stamp sales.

Requires the Secretary to: (1) include in each report under the Migratory Bird Conservation Act a statement of all expenditures; and (2) provide a copy to the Commission and specified congressional committees.