Non-structural components of buildings, including architectural elements, mechanical systems, and equipment, play a major role in safety, functionality, and construction costs. The vulnerability of these components to earthquakes can have widespread life and financial consequences and even disrupt the overall performance of resistant structures. Recent earthquake experiences, such as the Sar-e-Pul-Zahab earthquake (2017), have highlighted the importance of considering the seismic design of these components. This study aims to compare the seismic lateral force of non-structural components proposed in the fourth and fifth editions of the Iranian Code of Practice for Seismic Resistant Design of Buildings (Standard 2800) and the NIST GCR 18-917-43 report. The results show that the fourth edition of Standard 2800 often underestimates the force values due to ignoring parameters such as maximum floor acceleration, damping, and ductility. This difference was observed in cases up to two times more than the NIST report values, which can be considered accurate values. In the fifth edition of the 2800 standard, inspired by the 22nd edition of the ASCE/SEI 7 code, by considering dynamic factors, the results have become closer to the NIST report values, but the seismic demand on non-structural components is still lower than the NIST report due to the lack of inclusion of effective parameters. In the absence of international codes, the use of the fifth edition of the 2800 standard can be a better alternative, but not the best, compared to the fourth edition of this standard. The fifth edition should move towards a more accurate estimation of seismic demands and improvement of safety and performance levels by considering dynamic effects and adding appropriate correction factors.