Metrology (the science of measurement): "The science of measurement and all its activities"...

From this perspective, the Palestinian National Authority has paid great attention to the subject of metrology...

The National Metrology Directorate emerged from the National Metrology System...

• Industrial metrology: Specializes in the quality of products and services.
• Legal metrology: Specializes in citizen protection and transparency in commercial transactions.
• Scientific metrology: Specializes in reference standards, their development, preservation, and calibration.

All metrology activities are regulated and implemented through the following legal documents:

It is the legal document that authorizes the National Metrology Directorate of the institution...

These are official and legal documents that clarify and specify administrative and technical requirements... The available instructions include:

• Legal Metrology Instructions
• Instructions for Form Certification
• Instructions for Prepackaged and Packaged Materials
• Water Meter Instructions
• Instructions for Continuous and Dynamic Metering Systems for Liquid Fuels
• Instructions for Weights and Scales
• Instructions for Floor Scales
• System of Units of Measurement
• Quality System According to ISO 17025
• Instructions for Authorization to Carry Out Verification Activities
• Instructions for Authorization to Maintain, Repair, and Install Legal Measuring Instruments