All engineering designs and practices follow Indonesian SNI standards and applicable government construction codes.

For structural, marine, and mechanical systems, Rexline integrates international codes including ACI, AISC, API, ASTM, ASME, and IEC to meet global compliance.

Permit drawings and submissions adhere to local licensing procedures as mandated by the Ministry of Public Works (PU), Ministry of Transportation (Perhubungan), and MIGAS standards for fuel systems.

Engineering software includes AutoCAD, Tekla, STAAD Pro, SolidWorks, Helix, and SAP2000.

Compliance with both Indonesian SNI and international codes including ACI, AISC, ASTM, and API.