MPEP § 2427 — Form Paragraphs for Applications Subject to WIPO ST.25 (Annotated Rules)

§2427 Form Paragraphs for Applications Subject to WIPO ST.25

USPTO MPEP version: BlueIron's Update: 2025-12-31

This page consolidates and annotates all enforceable requirements under MPEP § 2427, including statutory authority, regulatory rules, examiner guidance, and practice notes. It is provided as guidance, with links to the ground truth sources. This is information only, it is not legal advice.

Form Paragraphs for Applications Subject to WIPO ST.25

This section addresses Form Paragraphs for Applications Subject to WIPO ST.25. Primary authority: 37 CFR 1.52(e). Contains: 1 requirement, 1 guidance statement, and 2 permissions.

Key Rules

Topic

Statutory Authority for Examination

17 rules
StatutoryPermittedAlways
[mpep-2427-364e4d117c31d71ee7c58e33]
Minor Sequence Rule Errors Can Be Addressed Next Office Action
Note:
Allows examiners to address minor sequence rule errors found after examination has begun in the next office action.

In order to expedite the processing of applications, minor errors pertaining to compliance with the sequence rules discovered after examination has begun may be handled with the next Office action. Examples of minor errors are: missing any necessary sequence identifiers in the specification/drawings; missing or providing an incomplete incorporation by reference of the “Sequence Listing” in the specification (if required); and missing statement that the sequence information contained in the “Sequence Listing” is identical to the sequence information contained in the computer readable form (if required). Since the application is ready for examination, the examiner may act on the application and include any objections to the application based on minor errors related to the “Sequence Listing” or the CRF of the “Sequence Listing” with the Office action.

Jump to MPEP SourceStatutory Authority for ExaminationSequence Listing FormatExamination Procedures
StatutoryPermittedAlways
[mpep-2427-e353f7caf5b0dc91f48bcb61]
Examiner May Address Sequence Listing Issues After Examination Begins
Note:
The examiner can include objections related to minor errors in the sequence listing after examination has started.

In order to expedite the processing of applications, minor errors pertaining to compliance with the sequence rules discovered after examination has begun may be handled with the next Office action. Examples of minor errors are: missing any necessary sequence identifiers in the specification/drawings; missing or providing an incomplete incorporation by reference of the “Sequence Listing” in the specification (if required); and missing statement that the sequence information contained in the “Sequence Listing” is identical to the sequence information contained in the computer readable form (if required). Since the application is ready for examination, the examiner may act on the application and include any objections to the application based on minor errors related to the “Sequence Listing” or the CRF of the “Sequence Listing” with the Office action.

Jump to MPEP SourceStatutory Authority for ExaminationSequence Listing FormatExamination Procedures
StatutoryRequiredAlways
[mpep-2427-7a045eef1c02e5f27f83095a]
Sequence Listing Not Required for Examination
Note:
This form paragraph is used when a compliant sequence listing is not necessary for examining the application.

1. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

37 CFR 1.77Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
StatutoryRequiredAlways
[mpep-2427-02a41c05fe0ccfde562f71b8]
Requirement for Sequence Listing Non-Compliance When Not Required
Note:
This form paragraph must be used when a compliant sequence listing is not required for examination of the application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

37 CFR 1.77Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
MPEP GuidanceRequiredAlways
[mpep-2427-6fe5d6353e53c12c958d1291]
Sequence Listing Not Required for Examination
Note:
This form paragraph is used when a compliant sequence listing is not necessary for the examination of an application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

MPEP § 2427Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
MPEP GuidanceRequiredAlways
[mpep-2427-990e320fc830391c95df1090]
Non-Compliant Sequence Listing Not Required for Examination
Note:
This form paragraph is used when a compliant sequence listing is not necessary for the examination of an application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

MPEP § 2427Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
MPEP GuidanceRequiredAlways
[mpep-2427-d66ec7d483ada2e8021819de]
Non-Compliant Sequence Listing Not Required for Examination
Note:
This form paragraph is used when a compliant sequence listing is not necessary for the examination of an application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

MPEP § 2427Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
MPEP GuidanceRequiredAlways
[mpep-2427-9e346690cf57a1b5dffd5f8d]
Sequence Listing Not Required for Examination
Note:
This form paragraph should be used when a compliant sequence listing is not necessary for the examination of the application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

MPEP § 2427Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
MPEP GuidanceRequiredAlways
[mpep-2427-3dbd9e0007e9ce3b05bb33cb]
Sequence Listing Not Required for Examination
Note:
This form paragraph is used when a compliant sequence listing is not necessary for the examination of an application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

MPEP § 2427Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
MPEP GuidanceRequiredAlways
[mpep-2427-13f24ba6018b466ee99f2c76]
Sequence Listing Not Required for Examination
Note:
This form paragraph should be used when a compliant sequence listing is not necessary for the examination of the application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

MPEP § 2427Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
MPEP GuidanceRequiredAlways
[mpep-2427-eacfec986bbe7a56c178f8f3]
Sequence Listing Not Required for Examination
Note:
This form paragraph is used when a compliant sequence listing is not necessary for the examination of the application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

MPEP § 2427Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
MPEP GuidanceRequiredAlways
[mpep-2427-b6d81c4b59d20088623bf722]
Sequence Listing Not Required for Examination
Note:
This form paragraph is used when a compliant sequence listing is not necessary for examining the application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

MPEP § 2427Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
MPEP GuidanceRequiredAlways
[mpep-2427-686fa60fa98ef51039b148d9]
Sequence Listing Not Required for Examination
Note:
This form paragraph is used when a compliant sequence listing is not necessary for examining the application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

MPEP § 2427Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
MPEP GuidanceRequiredAlways
[mpep-2427-979659a576670ee0b5b4140f]
Sequence Listing Not Required for Examination
Note:
This form paragraph should be used when a compliant sequence listing is not necessary for the examination of an application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

MPEP § 2427Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
MPEP GuidanceRequiredAlways
[mpep-2427-b4f4609b377b6f583f06af53]
Sequence Listing Not Required for Examination
Note:
This form paragraph is used when a compliant sequence listing is not necessary for the examination of the application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

MPEP § 2427Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
MPEP GuidanceRequiredAlways
[mpep-2427-3f44d665a5615f360c8da7d0]
Sequence Listing Not Required for Examination
Note:
This form paragraph should be used when a compliant sequence listing is not needed for the examination of the application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

MPEP § 2427Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
MPEP GuidanceRequiredAlways
[mpep-2427-885232769da6427ce65cb59f]
Sequence Listing Not Required for Examination
Note:
This form paragraph is used when a compliant sequence listing is not necessary for the examination of an application.

2. This form paragraph should only be used for sequence listing non-compliance where a compliant sequence listing is not required for examination of the application.

MPEP § 2427Statutory Authority for ExaminationSequence Listing FormatExamination Procedures
Topic

Sequence Listing Format

9 rules
StatutoryRecommendedAlways
[mpep-2427-600b5be7983fe1a936754186]
Requirement for Proper Submission of Computer Program Listing, Sequence Listing, and Large Tables on Read-Only Optical Disc
Note:
The rule requires that a read-only optical disc containing a computer program listing appendix, sequence listing, or large tables must comply with the requirements set forth in 37 CFR 1.52(e).

See MPEP § 608.05 for form paragraphs which should be used when notifying applicant that a read-only optical disc submitted in accordance with 37 CFR 1.52(e) (i.e., containing a “Computer Program Listing Appendix”, “Sequence Listing”, and/or “Large Tables”) does not comply with all of the requirements of the 37 CFR 1.52(e). See also MPEP § 608.05(b) for form paragraphs which should be used when a table submitted on read-only optical disc does not comply with 37 CFR 1.52(e).

Jump to MPEP Source · 37 CFR 1.52(e)Sequence Listing FormatSequence Listing RequirementsPaper and Format Requirements
StatutoryRequiredAlways
[mpep-2427-3918695bb50e156dea7954b1]
Minor Errors in Sequence Listings
Note:
Examiner may address minor errors in sequence listings during examination, such as missing identifiers and incomplete references to the Sequence Listing.

In order to expedite the processing of applications, minor errors pertaining to compliance with the sequence rules discovered after examination has begun may be handled with the next Office action. Examples of minor errors are: missing any necessary sequence identifiers in the specification/drawings; missing or providing an incomplete incorporation by reference of the “Sequence Listing” in the specification (if required); and missing statement that the sequence information contained in the “Sequence Listing” is identical to the sequence information contained in the computer readable form (if required). Since the application is ready for examination, the examiner may act on the application and include any objections to the application based on minor errors related to the “Sequence Listing” or the CRF of the “Sequence Listing” with the Office action.

Jump to MPEP SourceSequence Listing FormatSequence Listing RequirementsStatutory Authority for Examination
StatutoryRequiredAlways
[mpep-2427-1bf1d63fb5508faaabdaf8e3]
No Sequence Listing Requirement
Note:
This form paragraph is used when an application does not include a required sequence listing and no CRF.

3. This form paragraph should be used for an application that has no "Sequence Listing" part of the disclosure as required by 37 CFR 1.821(c) and no CRF as required by 37 CFR 1.821(e).

37 CFR 1.77 · 37 CFR 1.821(c)Sequence Listing FormatSequence Listing Requirements
StatutoryRequiredAlways
[mpep-2427-8b91ff3856c97697225037fa]
Sequence Listing Not Required
Note:
This form paragraph is used when an application lacks a required sequence listing and the CRF is defective.

3. This form paragraph should be used for an application that has no "Sequence Listing" part of the disclosure as required by 37 CFR 1.821(c) and the CRF as required by 37 CFR 1.821(e) is defective.

37 CFR 1.77 · 37 CFR 1.821(c)Sequence Listing FormatSequence Listing Requirements
StatutoryRequiredAlways
[mpep-2427-8e09898ba16053600778efce]
Sequence Listing Not Matching CRF Requirement
Note:
This form paragraph is required when the Sequence Listing in the disclosure does not match the CRF as specified.

3. This form paragraph should be used for an application in which the "Sequence Listing" part of the disclosure as required by 37 CFR 1.821(c) is not the same as the CRF as required by 37 CFR 1.821(e).

37 CFR 1.77 · 37 CFR 1.821(c)Sequence Listing FormatSequence Listing Requirements
MPEP GuidanceRecommendedAlways
[mpep-2427-f7e64a1d5524a3609c57bc06]
CRF Must Match Sequence Listing
Note:
The application must include a statement that the CRF is identical to the 'Sequence Listing' part of the disclosure.

3. This form paragraph should be used for an application that is missing the statement that the CRF is identical to the "Sequence Listing" part of the disclosure.

MPEP § 2427Sequence Listing FormatSequence Listing Requirements
MPEP GuidanceRecommendedAlways
[mpep-2427-ff4af69793d4772539381b8e]
Sequence Disclosures Not in CRF or Listing Must Be Described
Note:
This form paragraph requires that any sequence disclosures not included in the Sequence Listing or CRF must be described in the application.

3. This form paragraph should be used for an application containing sequence disclosures that are not contained in the Sequence Listing or CRF.

MPEP § 2427Sequence Listing FormatSequence Listing Requirements
MPEP GuidanceRecommendedAlways
[mpep-2427-ebaeec2a5f9cfc4a5d9189d6]
Sequence Listing Format for Missing Reference
Note:
This form paragraph is required for sequence listings under specific conditions where the incorporation-by-reference paragraph is missing.

3. This form paragraph should only be used for a sequence listing under 1) a) or 1) b) in form paragraph 24.01, where the incorporation-by-reference paragraph is missing.

MPEP § 2427Sequence Listing FormatSequence Listing Requirements
MPEP GuidanceRecommendedAlways
[mpep-2427-abde7978b2d68f661c5be85f]
Requirement for Sequence Listing When Missing Instruction
Note:
This form paragraph must be used when the instruction to enter the 'Sequence Listing' into the application is absent.

3. This form paragraph should only be used where the instruction to enter the "Sequence Listing" into the application is missing.

MPEP § 2427Sequence Listing FormatSequence Listing Requirements
Topic

Sequence Listing Content

3 rules
StatutoryInformativeAlways
[mpep-2427-92ea033f5e804e2684d5a0ab]
Nucleotide and Amino Acid Sequence Disclosures Not Required for Pre-July 1, 2022 Applications
Note:
This rule states that applications filed before July 1, 2022, do not need to include disclosures of nucleotide or amino acid sequences as defined in 37 CFR 1.831(b). For post-July 1, 2022 applications, refer to MPEP sections 2412-2419 for guidance on WIPO ST.26 requirements.

[Editor Note: This section is not applicable to applications filed on or after July 1, 2022, having disclosures of nucleotide and/or amino acid sequences as defined in 37 CFR 1.831(b). See MPEP §§ 2412 – 2419 for guidance on WIPO ST.26 requirements for applications filed on or after July 1, 2022.]

37 CFR 1.77 · 37 CFR 1.831(b)Sequence Listing ContentSequence Listing Requirements
MPEP GuidanceRecommendedAlways
[mpep-2427-5accb8d42e8b610a0e4859db]
Requirement for Sequence Identifier Not Mentioned
Note:
This form paragraph is required when a sequence is present but not referenced by 'SEQ ID NO:' in the description or claims.

3. This form paragraph should be used for an application where reference has not been made to the sequence by use of the sequence identifier, preceded by "SEQ ID NO:" in the text of the description or claims, even if the sequence is also embedded in the text of the description or claims of the patent application.

MPEP § 2427Sequence Listing ContentSequence Listing FormatSequence Listing Requirements
MPEP GuidanceRecommendedAlways
[mpep-2427-e225341631bfcafd7ab18a19]
Requirement for Sequence Identifier Absence in Drawings
Note:
This rule requires that if a sequence is not referenced by its identifier 'SEQ ID NO:' in the drawings or brief description, this form paragraph must be used.

3. This form paragraph should be used for an application where reference has not been made to the sequence by use of the sequence identifier, preceded by "SEQ ID NO:" in either the text of the drawings or the Brief Description or the Drawings.

MPEP § 2427Sequence Listing ContentSequence Listing FormatSequence Listing Requirements

Examiner Form Paragraphs

Examiner form paragraphs are standard language that you might see in an Office Action or communication from the USPTO. Examiners have latitude to change the form paragraphs, but you will often see this exact language.

¶ 24.01 ¶ 24.01 Heading for Sequence Requirements

REQUIREMENTS FOR PATENT APPLICATIONS CONTAINING NUCLEOTIDE AND/OR AMINO ACID SEQUENCE DISCLOSURES

Items 1) and 2) provide general guidance related to requirements for sequence disclosures.

Specific deficiencies and the required response to this Office Action are as follows:

¶ 24.02 ¶ 24.02 No Sequence Listing part of the disclosure and No CRF

Specific deficiency – This application fails to comply with the requirements of 37 CFR 1.821 – 1.825 because it does not contain a "Sequence Listing" as a separate part of the disclosure or a CRF of the “Sequence Listing”.

¶ 24.03 ¶ 24.03 No Sequence Listing part of the disclosure and Defective CRF

Specific deficiency – This application fails to comply with the requirements of 37 CFR 1.821 – 1.825 because it does not contain a "Sequence Listing" as a separate part of the disclosure and the CRF of the "Sequence Listing" is defective.

¶ 24.04 ¶ 24.17 Improper CRF transfer request

Specific deficiency – The present application contains a "Sequence Listing" submitted as either a PDF file pursuant to 37 CFR 1.821(c)(2) or as physical sheets of paper pursuant to 37 CFR 1.821(c)(3) . No computer readable form (CRF) of the “Sequence Listing” pursuant to 37 CFR 1.821(e)(1) has been received. In lieu of the CRF, Applicant has filed a request to transfer the CRF from a related or other application of the applicant to the present application to comply with the requirement in 37 CFR 1.821(e)(1) . As of November 15, 2021, the practice of transferring a CRF from a previously-filed application of applicant into the present application in order to comply with 37 CFR 1.821(e)(1) has been eliminated.

¶ 24.05 ¶ 24.05 The “Sequence Listing” part of the disclosure and the CRF are not the same

Specific deficiency – This application fails to comply with the requirements of 37 CFR 1.821 – 1.825 because the "Sequence Listing" part of the disclosure submitted as a PDF file ( 37 CFR 1.821(c)(2) ) or on physical sheets of paper ( 37 CFR 1.821(c)(3) )is not the same as the CRF of the "Sequence Listing" as required by 37 CFR 1.821(e)(1)(ii) or 1.821(e)(2)(ii) .

Required response – Applicant must provide:

OR

¶ 24.06 ¶ 24.06 Missing statement that the “Sequence Listing” (paper or PDF) and the CRF are the same

Specific deficiency – This application fails to comply with the requirements of 37 CFR 1.821 – 1.825 because the application does not contain a statement that the CRF is identical to the "Sequence Listing" part of the disclosure, as described above in item 1), as required by 37 CFR 1.821(e)(1)(ii) or 1.821(e)(2)(ii) .

Required response – Applicant must provide such statement.

¶ 24.07 ¶ 24.07 No Computer Readable Form (CRF) submitted

Specific deficiency – This application contains a "Sequence Listing as a PDF file ( 37 CFR 1.821(c)(2) ) or as physical sheets of paper ( 37 CFR 1.821(c)(3) , but fails to comply with the requirements of 37 CFR 1.821 – 1.825 because a copy of the "Sequence Listing" in computer readable form (CRF) has not been submitted as required by 37 CFR 1.821(e)(1)(i) or 1.821(e)(2)(i) as indicated in item 2) above.

Required response – Applicant must provide:

¶ 24.08 ¶ 24.08 Computer Readable Form (CRF) contains error(s) according to STIC report

Specific deficiency – This application fails to comply with the requirements of 37 CFR 1.821 – 1.825 . This application contains a "Sequence Listing" as a PDF file ( 37 CFR 1.821(c)(2) ) or as physical sheets of paper ( 37 CFR 1.821(c)(3) ). A copy of the "Sequence Listing" in computer readable form (CRF) has been submitted; however, the content of the CRF does not comply with one or more of the requirements of 37 CFR 1.822 through 1.824 , as indicated in the "Error Report" that indicates the "Sequence Listing" could not be accepted. Refer to attachment or document "Computer Readable Form (CRF) for Sequence Listing – Defective" dated [1] .

¶ 24.09 ¶ 24.09 Computer Readable Form (CRF) damaged or unreadable

Specific deficiency – The ASCII .txt file purported to contain the computer readable form (CRF) copy of the "Sequence Listing" filed with this application in accordance with 37 CFR 1.821(c) has been found to be damaged, unreadable, or otherwise contains an error as indicated on document "Computer Readable Form (CRF) for Sequence Listing – Defective" dated.

Required response – Applicant must provide:

¶ 24.10 ¶ 24.10 Sequence IDs not present in the specification

Specific deficiency – Nucleotide and/or amino acid sequences appearing in the specification are not identified by sequence identifiers in accordance with 37 CFR 1.821(d) .

Required response – Applicant must provide:

¶ 24.11 ¶ 24.11 Sequence IDs not present in the drawings

Specific deficiency – Nucleotide and/or amino acid sequences appearing in the drawings are not identified by sequence identifiers in accordance with 37 CFR 1.821(d) . Sequence identifiers for nucleotide and/or amino acid sequences must appear either in the drawings or in the Brief Description of the Drawings.

Required response – Applicant must provide:

AND/OR

¶ 24.12 ¶ 24.12 Sequences present in the specification or drawings that are not in the CRF or listing

Specific deficiency – This application contains sequence disclosures in accordance with the definitions for nucleotide and/or amino acid sequences set forth in 37 CFR 1.821(a)(1) and (a)(2) . However, this application fails to comply with the requirements of 37 CFR 1.821 – 1.825 .

The sequence disclosures are located [1] .

Required response – Applicant must provide:

¶ 24.14 ¶ 24.14 Amendment Missing Instruction to Enter the “Sequence Listing” into the Application

Specific deficiency – The "Sequence Listing" has not been entered into the application because the amendment does not direct entry of either the "Sequence Listing" (as required by 37 CFR 1.825(a)(2) or 1.825(b)(2) ) or contain the required Incorporation by Reference paragraph into the application.

Required response – Applicant must provide:

Citations

Primary topicCitation
Sequence Listing Format37 CFR § 1.52(e)
Sequence Listing Format37 CFR § 1.821(c)
Sequence Listing Format37 CFR § 1.821(e)
Sequence Listing Content37 CFR § 1.831(b)
Sequence Listing ContentMPEP § 2412
Sequence Listing FormatMPEP § 608.05
Sequence Listing FormatMPEP § 608.05(b)
Sequence Listing FormatForm Paragraph § 24.01

Source Text from USPTO’s MPEP

This is an exact copy of the MPEP from the USPTO. It is here for your reference to see the section in context.

BlueIron Last Updated: 2025-12-31