Nakhorn PoovarodomPennung WarnitchaiTeraphan OrnthammarathSutat LeelataviwatPhaiboon PanyakapoAmorn PimanmasChatpan ChintanapakdeePanitan Lukkunaprasit2562-02-022019-02-022561-11-22http://dspace.spu.ac.th/handle/123456789/5894The first seismic regulation in Thailand was issued in 1997 and followed by the design standard which has been published since 2009. Recent understandings of regional seismic hazard and new findings from researches have identified some key amendments for the standard. This paper presents major revisions of the 2018 standard as following contents; updated probabilistic seismic hazard assessments, new design spectral acceleration for Bangkok and vicinity area considering deep basin effects, seismic detailing requirements for concrete moment frames, recommendations for RC frames with masonry infill walls, seismic load for foundation design, revision of seismic detailing requirements, modification of response spectrum analysis procedure and miscellaneous amendments.enEarthquake Resistant design standard, reinforced concrete, building, ThailandArticle