EPA-420-B-11-021

 May 2011

Proposed Changes to Content and Availability of 

EMTS Documents

What are EMTS documents?

• Documents are generated in EMTS to aid in your organization’s internal recordkeeping 

and reporting. 

Why are there proposed changes?

• Documents have grown in size as information has been added.

• Number of available documents has increased with each EMTS release. 

• Frequency of document availability has increased to meet the needs of EMTS users. 

• EMTS retains each document that is generated.

• System performance and database size are affected by the above and are unsustainable. 

What are the proposed changes?

Version 1.4

• Create a new daily document – Transaction Status document– that contains transaction 

activity for a single day (i.e., yesterday’s activity). For each organization it will show 

transactions submitted by that organization and transactions specifying that 

organization as the trading partner from the prior day. It will also show transactions that 

changed status on the previous day (e.g., if a pending trade was accepted yesterday, it 

will be displayed on the today’s report). The document will be produced once per day

during the overnight document generation process. 

• Automatically unsubscribe organizations that fail to download documents for which 

they have subscribed after 30 days of inactivity. An email notification will be sent to 

users before and after the system performs this action. Users may re-subscribe to 

documents at any time.

• Modify the Monthly Transaction History document to display transactions based on 

Transaction Status Date rather than Submission Status Date. This will ensure that 

transaction status changes occurring after the end of the month will be included in the 

Monthly Transaction History document. 
May 2011 | Page 2 

• Require subscription to the Monthly Transaction History document for organizations 

that wish to maintain a historic record of transactions in EMTS documents. Then, for 

certain documents, purge all “3 per day,” “daily,” and “weekly” documents once the 

“monthly” Transaction History document becomes available. EMTS will retain Monthly 

Transaction History documents for a period of one year so that a complete set of 

documents exists for the most recent compliance year and a set for the current 

compliance year. 

Version 1.5

• Fully replace 3 per day, daily and weekly Transaction History documents with 

Transaction Status documents. EMTS will no longer produce “3 per day,” “daily” and 

“weekly” Transaction History documents. The Monthly Transaction History document 

will still be available.

• Match the amount of data provided in a document to the frequency of generation for 

that document. This change applies to the Completed Trade, Expired Trade, and 

Canceled Trade documents. For example, a “daily” Completed Trades document would 

contain one day’s worth of data (e.g., yesterday’s data). All “3 per day” documents 

would contain all trades completed that day up until the time when the document is 

generated.

When will these changes take place?

• Version 1.4 Release – Summer 2011 

• Version 1.5 Release – Fall 2011

Can I submit comments to EPA on these proposed changes?

• Comments due: May 26, 2011

• Submit to: support@epamts-support.com