# CMAQ fails with 2nd day EMIS file

**URL:** <https://forum.cmascenter.org/t/cmaq-fails-with-2nd-day-emis-file/1570>\
**Category:** CMAQ\
**Created:** [June 11, 2020, 2:21pm UTC](https://forum.cmascenter.org/t/cmaq-fails-with-2nd-day-emis-file/1570 "2020-06-11T14:21:29Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![lizadams](https://avatars.discourse-cdn.com/v4/letter/l/49beb7/32.png) [@lizadams](https://forum.cmascenter.org/u/lizadams)\
**Post date:** [June 11, 2020, 3:21pm UTC](https://forum.cmascenter.org/t/cmaq-fails-with-2nd-day-emis-file/1570/2 "2020-06-11T15:21:58Z")

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If you are using CMAQv5.3, then this issue contains a discussion about the error, and the best fix is to upgrade to CMAQv5.3.1. [Incorrect timestepping for elevated point source emissions](https://forum.cmascenter.org/t/incorrect-timestepping-for-elevated-point-source-emissions/1214)

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_[View the full topic](https://forum.cmascenter.org/t/cmaq-fails-with-2nd-day-emis-file/1570)._