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EXHIBIT 31.2

                CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT
                    TO SECTION 302 OF THE SARBANES-OXLEY ACT

         I, R. Greg Smith, certify that:

         1.   I have reviewed this annual report on Form 10-KSB of ERF Wireless,
              Inc.;

         2.   Based on my knowledge, this report does not contain any untrue
              statement of a material fact or omit to state a material fact
              necessary to make the statements made, in light of the
              circumstances under which such statements were made, not
              misleading with respect to the period covered by this report;

         3.   Based on my knowledge, the financial statements, and other
              financial information included in this report, fairly present in
              all material respects the financial condition, results of
              operations and cash flows of the small business issuer as of, and
              for, the periods presented in this report;

         4.   The small business issuer's other certifying officer(s) and I are
              responsible for establishing and maintaining disclosure controls
              and procedures (as defined in Exchange Act Rules 13a-15(e) and
              15d-15(e)) and internal control over financial reporting (as
              defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the
              small business issuer and have:

                  a.  Designed such disclosure controls and procedures, or
                      caused such disclosure controls and procedures to be
                      designed under our supervision, to ensure that material
                      information relating to the small business issuer,
                      including its consolidated subsidiaries, is made known to
                      us by others within those entities, particularly during
                      the period in which this report is being prepared;

                  b.  Designed such internal control over financial reporting,
                      or caused such internal control over financial reporting
                      to be designed under our supervision to provide reasonable
                      assurance regarding the reliability of financial reporting
                      and the preparation of financial statements for external
                      purposes in accordance with generally accepted accounting
                      principles.

                  c.  Evaluated the effectiveness of the small business issuer's
                      disclosure controls and procedures and presented in this
                      report our conclusions about the effectiveness of the
                      disclosure controls and procedures, as of the end of the
                      period covered by this report based on such evaluation;
                      and

                  d.  Disclosed in this report any change in the small business
                      issuer's internal control over financial reporting that
                      occurred during the small business issuer's fourth fiscal
                      quarter that has materially affected, or is reasonably
                      likely to materially affect, the small business issuer's
                      internal control over financial reporting; and

         5.   The small business issuer's other certifying officer(s) and I have
              disclosed, based on our most recent evaluation of internal control
              over financial reporting, to the small business issuer's auditors
              and the audit committee of the small business issuer's board of
              directors (or persons performing the equivalent functions):

                  a.  All significant deficiencies and material weaknesses in
                      the design or operation of internal control over financial
                      reporting which are reasonably likely to adversely affect
                      the small business issuer's ability to record, process,
                      summarize and report financial information; and

                  b.  Any fraud, whether or not material, that involves
                      management or other employees who have a significant role
                      in the small business issuer's internal control over
                      financial reporting.

April 16, 2007

/s/ R. Greg Smith
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R. Greg Smith
Chief Financial Officer