UNITED STATES	
SECURITIES AND EXCHANGE COMMISSION	
Washington, D.C. 20549	
NOTICE OF EFFECTIVENESS	
	
Effective Date:	March 20, 2018	
Accession Number:	0001193125-18-082406	
Submission Type:	POS AM	
CIK:	0001692819	
Company Name:	Vistra Energy Corp.	
File Number:	333-222049