EX-99.906.CERT

                        FORM OF SECTION 906 CERTIFICATION

                            SECTION 906 CERTIFICATION

Pursuant to 18 U.S.C. ss. 1350, the undersigned officers of BlackRock Municipal
2020 Term Trust (the "Company"), hereby certifies, to the best of their
knowledge, that the Company's Report on Form N-CSR for the period ended December
31, 2003, (the "Report") fully complies with the requirements of Section 13(a)
or 15(d), as applicable, of the Securities Exchange Act of 1934 and that the
information contained in the Report fairly presents, in all material respects,
the financial condition and results of operations of the Company.

Dated:  March 8, 2004
      --------------------------------------








     /s/ Robert S. Kapito
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Name:    Robert S. Kapito
Title:   Principal Executive Officer








     /s/ Henry Gabbay
--------------------------------------------
Name:    Henry Gabbay
Title:   Principal Financial Officer





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