California Air Resources Board

E1

Infrastructure Delays

Shore power, ZEAT infrastructure

1 year

(Maximum of 2 years)4

At least 9 months prior to compliance dates

Accepted from 9 to 12 months before the expiration of the extension

E2

Technology Availability

Demonstration of lack of certified engines/DPFs5

2 years

(Unlimited renewals)

No later than 9 months and no earlier than 12 months before the compliance date

Accepted from 9 to 12 months before the expiration of the extension

E3 (CPFV)

Technology Feasibility
for CPFV with Tier 3 Or Better2  Engines

Demonstration of Tier 3 or better by Dec. 31, 2024

10 years

By July 1, 2024

Nonrenewable

E3

Technology Feasibility
and Financial Hardship
for All Other Vessels

Demonstration of technical infeasibility to repower and financial difficulty

2 years (Maximum of 6 years, not beyond Dec. 31, 2034)6

No later than 18 months before the compliance date, or no later than nine months before the December 31, 2023 compliance date

Accepted from 9 to 12 months before the expiration of the extension

E4

Tier 47  with Limited Operating Hours

Tier 4 engine, limited operating hours8, vessel replacement necessary for addition of DPF

2 Years

(Unlimited renewals)

No later than 9 months and no earlier than 12 months prior to the compliance date

Accepted from 9 to 12 months before the expiration of the extension

E5

Scheduling

Manufacturer or shipyard delays; conflicting compliance dates9

1 year

(Unlimited)4

Prior to compliance date10

Accepted from 9 to 12 months before the expiration of the extension

There are shore power or ZEAT infrastructure delays preventing my compliance.

Apply for extension E1 for a one-year extension.

There are no certified Tier 3, Tier 4 marine, or Tier 4 Final off-road engines commercially available for my vessel.

Apply for extension E2 for a two-year extension.

There aren't certified DPFs commercially available for my vessel.

Apply for extension E2 for a two-year extension. Upgrade to an available Tier 3 or better engine(s), whichever meets the most stringent standard available.

I own/operate a CPFV that meets or will meet Tier 3 or more stringent emissions standards by Dec. 31, 2024.

Apply by July 1, 2024, for extension E3 for a one-time ten-year extension.

There are no suitable engines (Tier 3 or Tier 4 marine, or Tier 4 Final off-road) or DPFs that safely fit within the existing vessel structure.11
AND
Modifications to the vessel’s structure to create space for compliant engines would compromise its structural integrity or stability.11
AND
I can demonstrate that removing my vessel from service and replacing it with a newly acquired compliant vessel is not financially possible.

Apply for extension E3 for a two-year extension.

My vessel is equipped with Tier 4 marine or Tier 4 Final off-road main propulsion engine(s) but adding a DPF is not technically feasible.11

AND

I can demonstrate that the vessel has not, and will not, operate above the annual hour thresholds of 2600 hours (or 1300 hours in or within 2 miles of a DAC).

Apply for extension E4 for a two-year extension.

My vessel is a barge or barge-‑mounted dredge with all auxiliary engines meeting Tier 4 marine or Tier 4 Final off-road standards but adding a DPF is not technically feasible.11

AND

I can demonstrate that the vessel has not, and will not, operate above the annual hour thresholds of 2600 hours (or 1300 hours in or within 2 miles of a DAC).

Apply for extension E4 for a two-year extension

I can demonstrate any of the following:

• Equipment manufacturer delays or installation difficulties
• New build vessel delays due to shipyard capacities
• Multiple engines on multiple vessels with the same compliance date
• Multiple engines on a single vessel with different compliance dates

Apply for extension E5 for a one-year extension.

I only use my vessel for a limited number of hours per year.

Apply for a low-use exception. See Table 22 in the regulation text for requirements.