Alternate I (Mar 2019). As prescribed in 536.515 (a), substitute the following paragraphs (c), (e), (h), and (i) for paragraphs (c), (e), (h), and (i) of the basic clause:

(c) Submission. Within 30 calendar days of notice to proceed, or such other time as may be specified in the contract, the Contractor shall submit the project schedule, together with a written narrative describing the major work activities, activities on the critical path, and major constraints underlying the sequence and logic of the project schedule.

(e) Activities. (1) The Contractor shall use a critical path method project schedule to plan, coordinate, and perform the work.

(2) The project schedule shall depict all activities necessary to complete the work, including, as applicable, all submittal and submittal review activities, all procurement activities, and all field activities, including mobilization, construction, start-up, testing, balancing, commissioning, and punchlist.

(3) Activities shall be sufficiently detailed and limited in duration to enable proper planning and coordination of the work, effective evaluation of the reasonableness and realism of the project schedule, accurate monitoring of progress, and reliable analysis of schedule impacts.

(4) Activity durations shall be based upon reasonable and realistic allocation of the resources required to complete each activity, given physical and logistical constraints on the performance of the work. All logic shall validly reflect physical or logistical constraints on relationships between activities. Except for the first and last activities in the project schedule, each activity shall have at least one predecessor and one successor relationship to form a logically connected network plan from notice to proceed to the contract completion date.

(h) Revisions to the schedule. (1) The Contractor should anticipate that the initial submittal of the project schedule will be subject to review and may require revision. The Contractor shall devote sufficient resources for meetings, revisions, and resubmissions of the project schedule to address any exceptions taken to the initial submittal. The Contractor understands and acknowledges that the purpose of the initial review and resolution of exceptions is to maximize the usefulness of the project schedule for contract performance.

(2) If the Contractor revises the project schedule after initial approved submission, the Contractor shall provide in writing a narrative describing the substance of the revision, the rationale for the revision, and the impact of the revision on the projected substantial completion date and the available float for all activities. The addition of detail to prospective activities shall not be deemed a revision if the overall duration of the detailed activity does not change.

(i) Updates. Unless a different period for updates is specified elsewhere, the Contractor shall update the project schedule monthly to reflect actual progress in completing the work, and submit the updated project schedule within 5 working days of the end of each month.

Alternate II (Mar 2019). As prescribed in 536.515 (b), substitute the following paragraphs (c), (e), and (i) for paragraphs (c), (e), and (i) of the basic clause:

(c) Submission. (1) Within 30 calendar days of notice to proceed, or such other time as may be specified in the contract, the Contractor shall submit the project schedule, together with a written narrative describing the major design and construction activities. The project schedule may indicate construction activities in summary form prior to completion of final design documents

(2) Within 30 calendar days of completion of final design documents, the Contractor shall submit a revised project schedule depicting all activities necessary to complete construction work activities, together with a written narrative describing the major work activities, activities on the critical path, and major constraints underlying the sequence and logic of the project schedule.

(e) Activities. (1) The Contractor shall use a critical path method project schedule to plan, coordinate, and perform the work.

(2) Activities shall be sufficiently detailed and limited in duration to enable proper planning and coordination of the work, effective evaluation of the reasonableness and realism of the project schedule, accurate monitoring of progress, and reliable analysis of schedule impacts.

(3) Activity durations shall be based upon reasonable and realistic allocation of the resources required to complete each activity, given physical and logistical constraints on the performance of the work. All logic shall validly reflect physical or logistical constraints on relationships between activities. Except for the first and last activities in the project schedule, each activity shall have at least one predecessor and one successor relationship to form a logically connected network plan from notice to proceed to the contract completion date.

(i) Updates. Unless a different period for updates is specified elsewhere, the Contractor shall update the project schedule monthly to reflect actual progress in completing the work, and submit the updated project schedule within 5 working days of the end of each month.

Alternate III (Jan 2020). As prescribed in 536.515 (c), substitute the following paragraphs (c), (e), (h), and (i) for paragraphs (c), (e), (h), and (i) of the basic clause:

(c) Submission. (1) Within 30 calendar days of contract award, or such other time as may be specified in the contract, the Contractor shall submit the design phase project schedule.

(2) Within 30 calendar days after establishing the final estimated cost of work, the Contractor shall submit the construction phase project schedule, together with a written narrative describing the major work activities, activities on the critical path, and major constraints underlying the sequence and logic of the project schedule.

(e) Activities. (1) The design phase project schedule shall depict all activities necessary to complete the design work, including, as applicable, all submittal and submittal review activities, cost reconciliation, and establishing the estimated cost of work for the construction phase.

(2) The Contractor shall use a critical path method project schedule to plan, coordinate, and perform the construction phase work.

(3) The construction phase project schedule shall depict all activities necessary to complete the construction work, including, as applicable, all submittal and submittal review activities, all procurement activities, and all field activities, including mobilization, construction, start-up, testing, balancing, commissioning, and punchlist.

(4) Activities shall be sufficiently detailed and limited in duration to enable proper planning and coordination of the work, effective evaluation of the reasonableness and realism of the project schedule, accurate monitoring of progress, and reliable analysis of schedule impacts.

(5) Activity durations shall be based upon reasonable and realistic allocation of the resources required to complete each activity, given physical and logistical constraints on the performance of the work. All logic shall validly reflect physical or logistical constraints on relationships between activities. Except for the first and last activities in the project schedule, each activity shall have at least one predecessor and one successor relationship to form a logically connected network plan from notice to proceed to the contract completion date.

(h) Revisions to the schedule. (1) The Contractor should anticipate that the project schedule will be subject to review and may require revision. The Contractor shall devote sufficient resources for meetings, revisions, and resubmissions of the project schedule to address any exceptions taken. The Contractor understands and acknowledges that the purpose of the review and resolution of exceptions is to maximize the usefulness of the project schedule for contract performance.

(2) If the Contractor proposes a revision to the project schedule after initial approved submission, the Contractor shall provide in writing a narrative describing the substance of the revision, the rationale for the revision, and the impact of the revision on the projected substantial completion date and the available float for all activities.

(i) Updates. Unless a different period for updates is specified elsewhere, the Contractor shall update the project schedule monthly to reflect actual progress in completing the work, and submit the updated project schedule within 5 working days of the end of each month.