# ISAM emission streams
**URL:** https://forum.cmascenter.org/t/isam-emission-streams/4792
**Category:** CMAQ-ISAM
**Tags:** cmaq, emissions
**Created:** [March 21, 2024, 12:38pm UTC](https://forum.cmascenter.org/t/isam-emission-streams/4792 "2024-03-21T12:38:22Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Sam](https://forum.cmascenter.org/u/Sam)
#### Post date: [March 21, 2024, 12:38pm UTC](https://forum.cmascenter.org/t/isam-emission-streams/4792/1 "2024-03-21T12:38:23Z")
Hi everyone
I am using CMAQ5.4 for ISAM runs. I am facing problem in grouping emissions together in the. ISAM control file (for example I want to group agricultural fires and wildfires together). When I run it with just EGU it runs fine but when I include other categories like fire or non IPM it doesn’t run. This is how I am defining the tag names, regions and emission streams. I don’t know if there is a specific naming convention but the tutorial suggested that you can group emissions together.
TAG NAME |EGU
REGION(S) |EVERYWHERE
EMIS STREAM(S) |PT\_EGU
TAG NAME |FIR
REGION(S) |EVERYWHERE
EMIS STREAM(S) |PT\_AGFIRES, PT\_FIRES, PT\_WILDFIRES, PT\_OTHFIRES
TAG NAME |CMV
REGION(S) |EVERYWHERE
EMIS STREAM(S) |PT\_CMV\_C3, PT\_CMV\_C1C2
This is the error that I am getting
```
User specified ISAM tag - PT_CMV_C3 - not found in available emissions streams
User specified ISAM tag - PT_CMV_C1C2 - not found in available emissions streams
```
Available Emissions Streams
GRIDDED\_EMIS
GRIDDED\_EMIS
GRIDDED\_EMIS
GRIDDED\_EMIS
GRIDDED\_EMIS
GRIDDED\_EMIS
GRIDDED\_EMIS
GRIDDED\_EMIS
GRIDDED\_EMIS
GRIDDED\_EMIS
GRIDDED\_EMIS
GRIDDED\_EMIS
GRIDDED\_EMIS
PT\_NONIPM
PT\_EGU
```
*** ERROR ABORT in subroutine ISAM_STREAMS on PE 319
INCORRECT Emissions Stream used in ISAM control file
```
I would really appreciate any help or guidance on the matter! Thank you!
---
### Author:  [@Ryan](https://forum.cmascenter.org/u/Ryan)
#### Post date: [March 22, 2024, 4:34am UTC](https://forum.cmascenter.org/t/isam-emission-streams/4792/2 "2024-03-22T04:34:43Z")
“not found in available emissions streams” means that you do not define this emission steam in your run.cctm.csh. Please go to the emission section of run.cctm.csh and then edit the emission stream for matching these in isam control file. Then the model is good to go.