Section 2509 - Examination(a) The Board shall adopt the administration, grading procedures, and passing score of the North American Pharmacist Licensure Examination (NAPLEX) and the Multistate Pharmacy Jurisprudence Examination (MPJE) or of comparable alternative national examinations.(b) The Board shall determine in its rules and regulations the frequency and conditions under which a candidate may retest after a failure.24 Del. Laws, c. 140, § 3; Code 1915, § 864; 35 Del. Laws, c. 56, § 1; Code 1935, § 944; 41 Del. Laws, c. 87, § 1; 42 Del. Laws, c. 91, § 1; 46 Del. Laws, c. 95, § 2; 24 Del. C. 1953, § 2523; 53 Del. Laws, c. 90, § 7; 58 Del. Laws, c. 511, § 57; 59 Del. Laws, c. 318, § 3; 64 Del. Laws, c. 167, §1; 68 Del. Laws, c. 206, §1; 75 Del. Laws, c. 436, § 22; 76 Del. Laws, c. 167, § 1.;