(a) Assign each production engine a unique identification number and permanently and legibly affix, engrave, or stamp it on the engine.

(b) At the time of manufacture, add a permanent emission control information label identifying each engine. To meet labeling requirements, do four things:

(1) Attach the label in one piece so it is not removable without being destroyed or defaced.

(2) Design and produce it to be durable and readable for the engine's entire life.

(3) Secure it to a part of the engine needed for normal operation and not normally requiring replacement.

(4) Write it in block letters in English.

(c) On your engine's emission control information label, do 13 things:

(1) Include the heading "EMISSION CONTROL INFORMATION".

(2) Include your full corporate name and trademark.

(3) State: "THIS ENGINE IS CERTIFIED TO OPERATE ON [specify operating fuel or fuels].".

(4) Identify the emission-control system; your identifiers must use names and abbreviations consistent with SAE J1930 (incorporated by reference in §1048.810).

(5) List all requirements for fuel and lubricants.

(6) State the date of manufacture (DAY (optional), MONTH, and YEAR); if you stamp this information on the engine and print it in the owner's manual, you may omit it from the emission control information label.

(7) State: "THIS ENGINE MEETS U.S. ENVIRONMENTAL PROTECTION AGENCY REGULATIONS FOR (MODEL YEAR) LARGE NONROAD SI ENGINES.".

(8) Include EPA's standardized designation for the engine family (and subfamily, where applicable).

(9) State the engine's displacement (in liters) and maximum brake power.

(10) State the engine's useful life (see §1048.101(g)).

(11) List specifications and adjustments for engine tuneups; show the proper position for the transmission during tuneup and state which accessories should be operating.

(12) Describe other information on proper maintenance and use.

(13) Identify the emission standards to which you have certified the engine.

(d) Some of your engines may need more information on the emission control information label.

(1) If you have an engine family that has been certified only for constant-speed engines, add to the engine label "CONSTANT-SPEED ONLY".

(2) If you have an engine family that has been certified only for variable-speed engines, add to the engine label "VARIABLE-SPEED ONLY".

(3) If you have an engine family that has been certified only for high-load engines, add to the engine label "THIS ENGINE IS NOT INTENDED FOR OPERATION AT LESS THAN 75 PERCENT OF FULL LOAD.".

(4) If you certify an engine to the voluntary standards in §1048.140, add to the engine label "BLUE SKY SERIES".

(5) If you produce an engine we exempt from the requirements of this part, see subpart G of this part and 40 CFR part 1068, subparts C and D, for more label information.

(6) If you certify an engine family under §1048.101(d) (and show in your application for certification that in-use engines will experience infrequent high-load operation), add to the engine label "THIS ENGINE IS NOT INTENDED FOR OPERATION AT MORE THAN _ PERCENT OF FULL LOAD.". Specify the appropriate percentage of full load based on the nature of the engine protection. You may add other statements to discourage operation in engine-protection modes.

(e) Some engines may not have enough space for an emission control information label with all the required information. In this case, you may omit the information required in paragraphs (c)(3), (c)(4), (c)(5), and (c)(12) of this section if you print it in the owner's manual instead.

(f) If you are unable to meet these labeling requirements, you may ask us to modify them consistent with the intent of this section.