Reglamento Técnico Salvadoreño RTS 97.02.01:15, Eficiencia energética. Equipos de refrigeración comercial auto contenidos. Límites máximos de consumo de energía, métodos de ensayo y etiquetado 

(Salvadorian Technical Regulation (RTS) No. 97.02.01:15: Energy efficiency. Self-contained commercial refrigeration appliances. Maximum energy consumption limits, test methods and labelling) (59 pages, in Spanish)

The notified Salvadorian Technical Regulation establishes the maximum electricity consumption levels per litre of usable refrigerated volume, the test methods for determining compliance therewith, and the labelling and marking requirements for all self-contained commercial refrigeration appliances.