This work aimed to present the production of a Certified Reference Material (CRM) of methamphetamine hydrochloride, as an important tool to ensure the quality of forensic results. Methamphetamine is a synthetic drug derived from amphetamine, which potentially stimulates the central nervous system, and its prolonged use can cause excessive anxiety, euphoria, bipolar disorder, and psychosis, among other health damages. To produce this batch of CRM, homogeneity and transport stability studies were carried out by High-Performance Liquid Chromatography with Photodiode Array Detection (HPLC-PDA) using the results of chromatographic area corrected by the mass fraction of the sample in the analyzed solution. Evaluation of stability under storage conditions and characterization of the material were performed by 1H qNMR, a ratio primary measurement procedure. The CRM showed neither considerable heterogeneity nor a tendency to instability under transport conditions (temperature of 50 °C up to 21 days) and storage conditions (20–25 °C). The certified purity value of methamphetamine hydrochloride was (999 ± 12) mg/g, equivalent to a mass fraction of (99.9 ± 1.2) g / (100 g), (k = 2).