<SEC-DOCUMENT>0000950170-24-066415-index.html : 20240530
<SEC-HEADER>0000950170-24-066415.hdr.sgml : 20240530
<ACCEPTANCE-DATETIME>20240530133534
ACCESSION NUMBER:		0000950170-24-066415
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		2
<RULE>
<RULE-NAME>13p-1
<ITEM>
<ITEM-NUMBER>1.01
<ITEM-PERIOD>20231231
</ITEM>
<ITEM>
<ITEM-NUMBER>1.02
<ITEM-PERIOD>20231231
</ITEM>
</RULE>
FILED AS OF DATE:		20240530
DATE AS OF CHANGE:		20240530

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CECO ENVIRONMENTAL CORP
		CENTRAL INDEX KEY:			0000003197
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL & COMMERCIAL FANS & BLOWERS & AIR PURIFYING EQUIP [3564]
		ORGANIZATION NAME:           	06 Technology
		IRS NUMBER:				132566064
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-07099
		FILM NUMBER:		241003603

	BUSINESS ADDRESS:	
		STREET 1:		14651 NORTH DALLAS PARKWAY
		STREET 2:		SUITE 500
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75254
		BUSINESS PHONE:		(513) 458-2600

	MAIL ADDRESS:	
		STREET 1:		4625 RED BANK ROAD
		STREET 2:		SUITE 200
		CITY:			CINCINNATI
		STATE:			OH
		ZIP:			45227

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	API ENTERPRISES INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALARM PRODUCTS INTERNATIONAL INC
		DATE OF NAME CHANGE:	19851210
</SEC-HEADER>
<DOCUMENT>
<TYPE>SD
<SEQUENCE>1
<FILENAME>form_sd_-_ceco_-_2023_-_.htm
<DESCRIPTION>SD
<TEXT>
Document 1 - file: form_sd_-_ceco_-_2023_-_.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.01
<SEQUENCE>2
<FILENAME>ceco-ex1_01.htm
<DESCRIPTION>EX-1.01
<TEXT>
Document 2 - file: ceco-ex1_01.htm

</DOCUMENT>
</SEC-DOCUMENT>