The IRS has established a web page on the agency’s site devoted to the BBA Centralized Partnership Audit Regime.[1]

The page is meant to provide a centralized location for the agency’s information and guidance on the new audit regime introduced by the Bipartisan Budget Act of 2015, which replaces the prior TEFRA partnership audit regime.

The sections of guidance found on the page are:

Filing Requirements;
BBA Partnership Audit notices;
Regulations for the BBA audits; and
Interim Guidance for the BBA audits.

The page concludes with a high level comparison table:

Partnership Procedures	TEFRA	BBA
Partnership point of contact for examination	Tax Matters Partner	Partnership Representative
Partner participation rights during examination	Partners have the ability to participate in the examination and challenge partnership adjustments	Partners have no participation right to challenge partnership adjustment
Partner consistency of reporting	Partners must report items consistently with the partnership	Partners must report items consistently with the partnership
Notice requirements	Notice requirements (NBAP, FPAA)	Notice requirements (NAP, NOPPA, FPA)
Items adjusted during examination	Partnership item/Affected item	Partnership related item (PRI)
Where adjustments/assessments occur	Adjustments at the partnership level/tax assessment at the partner level	Adjustment and assessment at the partnership level (imputed underpayment)
Distinct phases of examination	Field examination	Field examination phase
	Not applicable	Modification phase (optional)
	FPAA phase	FPA phase
	Not applicable	Push-out phase (optional)

[1] “BBA Centralized Partnership Audit Regime,” IRS website, September 1, 2020 https://www.irs.gov/businesses/partnerships/bba-centralized-partnership-audit-regime (retrieved September 2, 2020)