; (4) to enhance cooperation with ASEAN member states as well as with the institution of ASEAN and the ASEAN Secretariat, including through the United States Mission to ASEAN, led by the United States Ambassador to ASEAN; and (5) to welcome the decision in-principle by ASEAN to admit Timor-Leste to be ASEAN’s 11th member state and to encourage United States support to Timor-Leste in its capacity as an official ASEAN observer. 3. Sense of Congress on the establishment of an ASEAN delegation to the United States It is the sense of Congress that it is in the United States interest to encourage the establishment, at the earliest opportunity, of an ASEAN delegation to the United States, to enhance cooperation between ASEAN and the United States at all levels. 4. Extension of diplomatic immunities to the Association of Southeast Asian Nations The provisions of the International Organizations Immunities Act ( 22 U.S.C. 288 et seq. ) may be extended to the Association of Southeast Asian Nations in the same manner, to the same extent, and subject to the same conditions as such provisions may be extended to a public international organization in which the United States participates pursuant to any treaty or under the authority of any Act of Congress authorizing such participation or making an appropriation for such participation.