Authorised Maximum Daily Quantity

Authorised Maximum Daily Quantity (Authorised MDQ) and Authorised Maximum Daily Quantity Credit Certificate (AMDQ CC) are transportation rights in the Victorian Declared Transmission System (DTS). These are collectively known as AMDQ. Authorised MDQ is a withdrawal right for customers and/or Market Participants on the DTS for transported gas injected at Longford. Subsequent capacity increases to the DTS such as South West Pipeline, the Western Transmission System and the Bass Gas project have been allocated as AMDQ CC.

AMDQ is an input to determining congestion uplift charges payable by a Market Participant for each scheduling interval of a gas day as part of the funding of ancillary payments. AMDQ is also an input to tie breaking rights when scheduling equal priced injections or withdrawals bids, and in determining the order of curtailment in the event of an emergency.

Authorised MDQ may be transferred between customer sites, and AMDQ CC may be transferred between market participants.

AMDQ related documentation

• Wholesale Market AMDQ Procedures (492 KB, pdf)
  (including AMDQ Transfer and Nomination and AMDQ Auctions Procedures)
• AMDQ Transfer Algorithms (275 KB, pdf)
• Authorised MDQ register (103 KB, pdf)
• AMDQ CC Register (89.6 KB, pdf)

AMDQ related forms

• To request for AMDQ information:
  Meter Registration Request Form (269 KB, docx)
• To request Authorised MDQ Transfer Request Form:
  Authorised MDQ Transfer Request Form (272 KB, docx)
• To request AMDQ Credit Certificate nominations or renomination:
  AMDQ Credit Certificate Nomination Form (268 KB, docx)
• To provide evidence of firm capacity:
  • AMDQ Service Provider Confirmation Form (267 KB, docx)
  • AMDQ Primary Shipper Confirmation Form (268 KB, docx)
• To register new AMDQ CC:
  AMDQ Credit Certificate Registration Form (268 KB, docx)
• To request for AMDQ CC transfer:
  AMDQ Credit Certificate Transfer Request Form (269 KB, docx)

For further information, contact aemo.gassettlements@aemo.com.au