CARITO SMALL GRID COMPATIBILITY CLASSES v1.0
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Document: SG_Compatibility_Classes.txt
Status: Grid Definition / Interpretive Standard
Applies To: All Small Grid (SG) vehicles, MMF cages, Power Frames, and modules

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1. PURPOSE
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This document defines how compatibility classes A, B, and C are interpreted
specifically within the Small Grid (SG).

Its purpose is to remove ambiguity and ensure consistent labeling,
sales practices, and inspection outcomes.

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2. CORE PRINCIPLE
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Compatibility class describes future flexibility,
not present functionality.

A build may function well today while still being
Class B or Class C.

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3. CLASS A – BASELINE COMPLIANT
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Class A Small Grid builds represent the Carrito v1 baseline.

Requirements:
- Uses SG-MMF cage without modification
- Power Frame is removable without cutting
- SG-SPV envelope respected
- Service Access Zones preserved
- Power Output Plane unaltered
- No prohibited-zone welding

Class A builds:
- Are intended to be street-legal where applicable
- Represent the reference configuration for documentation
- Preserve maximum future compatibility

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4. CLASS B – OPTIMIZED
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Class B Small Grid builds are optimized for a specific
power system or use case.

Typical characteristics:
- Reduced service margins
- Power Frame welded via approved lock tabs
- CMZ structures optimized for current engine
- Future swaps require Power Frame or CMZ replacement

Class B builds:
- May remain street-legal
- Must disclose reduced future compatibility
- Must not be marketed as baseline

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5. CLASS C – EXPERIMENTAL
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Class C Small Grid builds extend or violate baseline constraints.

Typical characteristics:
- Partial SPV overuse
- Permanent obstruction of service zones
- Non-standard output alignment
- Experimental power systems

Class C builds:
- Are not baseline
- May require special inspection
- Must be clearly labeled as experimental

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6. CLASS TRANSITIONS
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A build may move:
- From A to B through optimization
- From B to C through experimentation

Returning to Class A requires:
- Removal of non-compliant structures
- Restoration of baseline geometry
- Reinspection

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7. LABELING REQUIREMENTS
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All Small Grid builds must declare:
- Grid: SG
- Compatibility class: A, B, or C

Class must appear:
- In serial identifiers
- In sales documentation
- In inspection materials

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8. SHOP DISCLOSURE
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Shops must:
- Explain class implications to customers
- Not minimize or obscure class differences
- Retain documentation of classification

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9. INSPECTION ROLE
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Inspectors may use compatibility class to:
- Determine review depth
- Identify baseline eligibility
- Flag experimental deviations

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10. SUMMARY
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Class A preserves options.
Class B trades options for optimization.
Class C explores beyond guarantees.

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END OF SG COMPATIBILITY CLASSES
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